Drill how to choose for home use
Choosing a drill for home: features of a percussion and electric tool
When choosing a tool, it is important to take into account that a drill is not only a unit for drilling holes of different diameters. With its help, you can both screw and unscrew various fasteners.
Any tool, including drills, is divided into household and professional. The latter are powerful units suitable for continuous use. They differ in ergonomic design, intended only for performing a narrow range of actions, increased noise, high price. Widely used in construction and finishing works.
For use in everyday life, the tool market is ready to offer household drills, which are distinguished by their versatility. They are distinguished by the ratio “price. quality”. It assumes continuous use of no more than 4 hours a day. Equipped with low-power motors for quieter operation. Also, the weight of such models is quite small.
Household tool classification
Drills belong to the class of power tools, the main purpose of which is to drill holes of various diameters. Scope of application. for home use. They are also classified by functionality. You need to pay attention to these parameters of the tool in order to get a good helper in the house. So which drill to choose?
- Impact drills. It is worth noting the difference between the models in terms of impact force. Some are equipped with a percussion function that can be turned on and off as needed. This option allows you to work with the most durable materials, for example: concrete, brick, metal. In addition to rotational movements, the axis of the device performs translational, that is, shock jolts “forward. backward”. However, the household impactor models are not designed to be used continuously on concrete in a domestic environment. You also need to understand that impact drills are not suitable for woodworking. The impact force of the tool can cause cracks in the wood, which will cause further splitting of the wood structure. Additional functions increase instrument weight and spindle play.
- When deciding which hammer drill to choose for your home, pay attention to the models in which the hammer function can be disabled. Then it will be a truly versatile tool that allows you to work with both wood and durable materials.
- Drill with screwdriver functions. One such device can both drill holes and screw fasteners into them. With this tool, you can do most of the household chores: hang a picture, fasten shelves, handles, assemble and disassemble furniture. For work on concrete or brick, the power of this drill will not be enough. Differs in compactness of the model, low power, relative silence during operation.
- Angle drills feature a bevel gear that allows you to drill holes in secluded corners. Differs in low power. The bevel gear can be purchased separately and used as needed. Such models are popular among motorists due to the ability to work under the hood of a car.
- The drill mixer is equipped with an additional attachment for mixing liquids and mixtures not exceeding 10 liters. The tool body is equipped with special handles. The set includes several attachments for different purposes. Has no impact function, therefore cannot be used when working with particularly durable materials.
It should also be noted that some models of drills can be equipped with a rechargeable battery. About them below.
The main parameters of the power tool
Among the rich assortment of hand tools for home use, it is important to note for yourself the main parameters that can influence your choice in the matter of which drill to choose for the home:
- Power. Its range ranges from 300 to 1500 watts. For domestic needs, a drill with an engine power of 600. 900 W is sufficient. When deciding which drill to choose for your home, pay attention to the power of the equipment. This must be taken into account in order to provide for the load on the electrical network. It is also an indicator of the speed of the drill, on which the speed at which you perform certain actions depends. The power of the drill allows it to be used on hard surfaces. Please note that as the power of the tool increases, its weight increases.
- Rotation speed indicates the number of revolutions per unit of time. Pay attention to the possibility of adjusting this parameter. This is necessary when performing various kinds of finishing work. The speed of rotation also indicates the ability to work with various types of materials, the performance of the unit. The quality of the wall covering inside the hole depends on its indicators.
- The speed controller allows you to control the peculiarities of rotation yourself, and also expands the possibilities. So screwing in the bolt can be done at speeds up to 500 rpm. power is required for drilling. It can be in electronic form, for example, a rheostat. Reacts sensitively to any impact on the button. Also distinguish stepwise regulation of speed capabilities. For these purposes, a switch is installed on the equipment case.
- The maximum permissible bore diameter is important for the operating conditions of the tool. This will reduce the stress on the operating data of the tool.
- The drill can be equipped with a keyless or serrated chuck. The latter type is classic, in which the drill is fastened using a special key. The quick-clamping allows you to install the drill of the desired size in a fairly short time. The quality of the result in both cases does not suffer in any way. When choosing which drill is better, compare the cost of both models.
- The tool can be equipped with a locking button, which allows the trigger to be locked when the drill is on.
Based on the above main points on the classification of the instrument, you can summarize, highlighting the important characteristics.
The advantages of household models
Regardless of the low engine power and poor protection against moisture and dust, a number of clear advantages of household power tools can be noted:
- Multifunctionality of models;
- Versatility of use;
- Low weight;
- Reverse function;
- Protection and power characteristics that protect against injury, especially in the absence of work experience;
- Many models have a case with spare parts: bits, drills, chuck, attachments;
- Manufacturer’s warranty from 1 year or more.
When choosing a drill for the home, it is important to understand that the service life and safety of use largely depend on the correctness of the choice made.
They are distinguished by mobility, the ability to work in places far from sources of electricity. The market for household tools presents models with built-in rechargeable batteries. Their polarity is presented in the range of 9.6 W to 18 W. The most common 12W batteries.
The type of battery is of great importance. Their choice depends on the frequency of use.
- Nickel-cadmium rechargeable batteries are not designed for long shelf life. Their purpose is frequent use. The power of the tool is designed to work with soft materials.
The last two models are more powerful batteries with a longer service life. Some manufacturers have equipped the tool with an extra battery, allowing more work to be done. Of the minuses, it should be noted the need for constant recharging of the tool so that the drill is ready for work at any time.
An important parameter of the cordless drill is the shape of the handle. Classic models are represented by pistol-shaped grips. They are comfortable when performing any actions, but they tire the hand.
An innovation is the placement of the handle in the center of gravity of the electric tool. The drill is always in a horizontal position, which greatly facilitates the process of working with it.
Factors influencing the choice of an electric drill
If you are faced with the question of how to choose a drill for the home, then mark the following points for yourself:
- How much work is to be done;
- How often the tool will be used;
- What types of surfaces are you supposed to work with;
- Scope of application, depending on the additional capabilities of the tool;
- Price range.
A little about punchers
It should be noted a representative of a more powerful instrument with an inherent impact force, which can perform more tasks. This is a drill. hammer drill. If a conventional drill drills holes with rotary movements, then they are absent in hammer drills. All work with any type of material is carried out using impact force.
Do not confuse a drill with a hammer drill. It has a more professional purpose. Powerful models are equipped with a jackhammer function.
If your field of activity is not related to finishing work, then there is no need to purchase this unit for domestic needs.
How to choose a drill. ideal drill for home
How to choose a drill. the perfect drill for home and office? It is not difficult to answer this question. it all depends on the type of work. In fact, this is not even a question. the choice of drill for home and office will depend on the material you need to work with. When choosing materials for a home drill, it is necessary to take into account the peculiarities of the work, the complexity of the equipment used and the complexity of the tools used. In this article, we will look at the main types of drills, consider their main functions, and also give an overview of the most popular models. Drill device Typically, this type of device is divided into two types: punching and drills.
Rotary hammers are used to drill holes in various materials, and drills are classified into drills and bits, the latter of which are used when drilling concrete and similar materials. In addition to the above, it should be borne in mind that drills have different functions. horizontal and vertical. It is recommended to use them if you only need to make a couple of holes in one material, and not on a complex drill. The main differences between drills are the number of revolutions of the drill. The main differences between seeders for home and office When choosing a seeder, it is necessary to consider not only the material with which you are working, but also the complexity of the work.
For example, in the case of a drill bit, it is advisable to use it for drilling holes in concrete, and in the case of a hammer drill, for drilling holes in wood. in brick and stone. The latter, in turn, are divided into drills and bits, which is explained by the fact that the latter are more convenient to use when working with certain materials. Practice shows that the former are more convenient to use, but it all depends on the complexity of the work. Therefore, if you need to drill multiple holes in wood, you should use a hammer drill, and when you need to drill many holes in a brick, use a drill. A drill is the most convenient way to work with a drill.
However, working with a drill is not always convenient, since it takes up a lot of space compared to a hammer drill. Therefore, in addition to the above, it is necessary to take into account the fact that it will be more convenient to work with a drill. If you need to drill many holes in a brick, you will need a drill bit. When choosing a drill, you need to pay attention to the fact that it will be more convenient to work with it, and when you need to drill several holes in a brick, you should use a drill. Also, the drill should be more durable, which does not require frequent replacement.
How to choose a drill for home
Drill for home use: the nuances of choice
A good, reliable drill in the house. necessary tool. With its help, you can assemble furniture, hang shelves or paintings, make strobes for wiring, and much more. In order to decide which drill for the house you should choose, you need to know the types of tasks that will be solved with its help. Although an electric drill for home use is versatile, each class of tool models has its own characteristics and purpose.
- Hammerless drill. This is a device that will make it possible to drill the most accurate and accurate holes. It is small in size and weight. Due to its narrow specialization, the drill is maximally adapted to perform the tasks that it faces.
- Hammer drill. a mixture of a simple electric drill and a conventional hammer drill. She can not only make holes, but also perform jerky movements. An additional function makes the device heavier and reduces the precision of drilling, but makes it possible to work with a material of greater hardness, for example, with concrete. Remember that this is not a hammer drill, the tool will not pull too heavy loads. In the device, a mode switch from percussion to ordinary is desirable.
- The drill-driver will be indispensable if you often collect furniture at home. It is not suitable for drilling holes in hard materials. Such a tool should have a speed and force regulator, the ability to switch to reverse.
- Angle electric drill. designed to work with difficult places. In its design there is a shaft that rotates, located perpendicular to the body. Such a device does not have the function of a punch and its power is slightly less than that of other tools.
Technical characteristics of electric drills for the home: what to look for
Distinctive features of a good household drill: reliability, ergonomics, safety, versatility. The tool should be comfortable even when working with one hand, lightweight, compact and fairly easy to use. A household drill differs from a professional one in that it cannot work for a long time without rest, since it does not have protection against overheating. You need to alternate 20 minutes of drilling with 20 minutes of rest.
For a household drill of a non-impact type, a power of 500.600 W will be sufficient, for a percussion drill. 600.100 watts. The more power. the higher the weight of the device. Pay attention to the rotation speed. the higher this figure, the clearer the holes. High speed is not suitable for driving screws, where it should be about 500 rpm. That is why it is worth choosing a drill with a speed control function.
If you have any plans. frequent change of attachments in the device, it is better to take a closer look at the tool that has a keyless chuck. It is much faster to change drills than in a chuck with a key, although the latter is more reliable.
By the type of power source, the drill can be networked and rechargeable. Product with battery. less powerful and needs to be stored properly. The battery life is 1.5. 2 years. When such a drill is indispensable, it is better to opt for a Li-Ion battery type.
When choosing a drill for your home, you need to take into account the presence of additional useful functions.
- Smooth start. helps to avoid jerks, overloads and mistakes.
- Latch of the start button. you can turn the drill into a stationary machine.
- Speed stabilizer. adjusts the tool to work with each of the materials.
- RPM switch.
Send your inquiries in any convenient way.
How does a professional drill differ from a household one?
It is accepted to divide all drills into household and professional ones. The latter are intended for permanent use. They have a higher price, ergonomic design and are not as widespread as household devices. But a person who only needs to drill a few holes a couple of times a year does not need a tool for a “professional” at all. Amateur models will also cope with such tasks.
Household tools are produced by all well-known manufacturers. It differs from the professional one in that it is more versatile. Indicators of its price and quality are harmoniously combined, and functionality is beyond praise. But you can only work with such a drill for 4 hours during the day, periodically giving it a rest. It is best to take a break after fifteen or twenty minutes of work. In this case, the time of work and breaks should be the same.
Such a short time of continuous operation of the device is quite understandable. The fact is that in household models the engine is also low-power, and the materials are not used the strongest. Unlike professional tools, such drills are less protected from water and dust during operation. However, they have a lot of positive qualities.
Let’s list them:
A drill for household needs is usually universal. It can serve as a percussion tool, and with its help you can not only drill holes, but also tighten screws and punch through a solid partition. As a rule, they are all equipped with a reverse. But the “cool” professional models have a much more limited set of functions.
Household devices are assembled from lightweight elements, so they weigh a little. The chuck for quick clamping of the tool is very convenient, there are soft pads on the body. Ergonomic appearance adds convenience to use.
As a rule, these devices have good protection and limited power characteristics, so even an inexperienced home craftsman will not get injured while working.
The drill case contains a large set of accessories. Spare bits, drills and chuck available.
The warranty for a household drill is usually higher than for a professional drill. two years versus one.
First, you need to determine how often you are going to use the device. With not very heavy loads, a household appliance is quite enough for home craftsmen, and for everyday work, a professional version is naturally needed. The passport of the device usually indicates which class it belongs to.
And one more thing: if the manufacturer claims that the drill can work without shutting down for at least an hour, then this is clearly a tool for the “pros”. Professional devices are designed for long-term operation, throughout the whole working day, which is 7.8 hours.
How to choose a drill, their types and selection criteria
A good drill can not only make holes in walls, it can perform many other useful functions. Therefore, it is quite difficult for an inexperienced person to make a choice from the many models on the market today.
Next, we’ll talk about how to choose a drill for home use or for permanent use for work that fully meets your specific requirements. In this case, we will take into account the estimated scope of work, as well as the functionality of the tool.
What are the types of specialized drills
Despite the versatility of this tool, different modifications of drills can be structurally different from each other. This is done for greater convenience when performing work of a certain type. When choosing a drill, you need to think carefully about the exact purposes for which it may be needed. Next, we list the types of drills according to their purpose.
How to choose a hammer drill for home use?
In the life of every man, and sometimes a woman, there comes a stage in life when in an apartment or in a house you need to hang a picture, a shelf, a mirror, or even just fold a curbstone or a rack, a table or a stool.
In order to perform these actions efficiently, reliably and without hindrance, you need a high-quality and reliable tool, namely a hand tool (screwdriver, pliers, tape measure, level) and a power tool (drill, screwdriver, wrench, puncher).
In this article, we will look at drills, namely an impact drill, and give the characteristics that you need to pay attention to in order to choose an inexpensive and high-quality impact drill for home use.
An impact drill is a type of drill with the category of power tools designed for drilling holes in various materials (wood, plastic, concrete, brick, metal). An impact drill differs from a simple one in that an impact drill designed to work with hard materials (concrete, metal) and during drilling, an impact drill performs reciprocating movements that help to quickly and efficiently drill a hole. The hammer drill function can be turned off on many drills.
Impact drills are classified into hand drills and electric drills. Half a century ago, our grandfathers used hand drills. To meet in those days an electric drill was a rarity. However, with the development of science and technology and in connection with the collapse of the USSR (transition to market relations), a large number of power tool companies came to the territory of Ukraine, representing well-known world brands (DWT, Makita, Stern, Interskol, Proton and others). World giants, present a variety of home drills, which differ not only in characteristics, but also in price and quality.
Now let’s move on to the characteristics that you need to pay attention to when choosing a hammer drill for home use.
The main characteristics that need to be addressed when choosing an impact drill are:
2) rotational speed of the drill;
3) maximum drilling diameter;
4) impact frequency.
Power is the main characteristic for smooth drilling of hammer drill holes. Most drills are rated at 50 to 3000 watts. The more power, the faster you can reach your goal, drill a hole. For home use, 500. 800 W is enough.
Another important characteristic is the rotational speed of the drill, which is measured by the number of revolutions per minute. The rotational speed of the drill can reach from 200 to 18,000. Please note that the most powerful drill does not always produce the maximum number of revolutions.
The maximum drilling diameter tells us what the maximum hole we can make. With a modern electric hammer drill, you can drill from 6 mm to 250 mm.
The impact rate is the number of impacts that an impact drill can make in 1 minute. The average number of strokes reaches 40,000. 50,000 rpm.
Also, what you need to pay attention to when choosing this power tool is weight. If the tool is heavy during operation, your hands will quickly get tired and it will be difficult for you to continue working.
In this article, we have only briefly covered the work of the impact drill. For more detailed advice, please contact our managers, who will be able to choose a tool that will satisfy your needs.
How to choose a good drill for home use?
Often, when performing repair work at home or, simply, to solve everyday problems, you have to turn to a tool such as a drill for help. And here it is very difficult for an ordinary buyer to choose the one that suits him. After all, you can get confused in front of a large number of varieties of electric drills. In order to choose a quality product for yourself, you can use these recommendations. Various types of drills and tips for choosing this tool will be discussed here.
Household or professional?
Electric drills are divided into two categories, which differ in their power and endurance. So, a professional drill is designed for almost continuous use, it can work up to seven hours a day. Whereas the household one should “rest” after twenty minutes of use. Also, the working life of a professional and household drill is different, the latter is used in operation for much longer. As for the price, the “pro” will cost more than usual. It must be said that for the average person who needs to do some housework with this tool, it makes absolutely no sense to purchase an expensive professional drill. Therefore, the best option would be to choose a simple tool that is much cheaper, and at the same time has a number of advantages.
The main types of drills:
Angle electric drill.
The peculiarity of this tool is its ability to penetrate into hard-to-reach places for drilling. Convenient to use, but rather weak power, as an alternative, you can purchase an angle attachment for a conventional drill. Today the for electric drills are very affordable.
Impact electric drill.
Useful if you need to break through stone or concrete. Thanks to the action of the cartridge, which, in addition to the rotation system, also has an ejection. This type of instrument has a switch from percussion to normal mode.
Cordless electric drill.
Suitable for work in open space, or in places where there is no electric current. The principle of operation of such a drilling machine, in its use on batteries. However, for home use, it has a significant drawback: you need to use such a drill often, otherwise the battery will deteriorate.
A screwdriver, in addition to its main function, will also help to screw in and unscrew various screws, self-tapping screws, screws.
What to look for when choosing a drill for home use?
Don’t Buy a Drill Without Watching This First
To begin with, you should decide for what purpose the electric drill will be purchased, and then, based on this, choose what will be best suited for the job. Also, you need to study the instructions, and see the main parameters:
Power plays a big role. Basically, in household drills, it is from 500 to 900 watts. This is enough for medium difficulty tasks.
Rotational speed. The faster it is, the better and smoother the walls of the holes.
Chuck type. They are quick-release and key. I use the former on devices with high power, the latter are suitable if there is a frequent replacement of nozzles.
Hole diameter. Can reach from 0.6 to 10 mm.
Speed mode. You should choose a drill with a stepless speed control. When pressed firmly, the rotation speed increases.
Fixed button. Helps keep the tool running without holding the hand on the trigger.
Now, having studied all the features of the drilling machine, you can quickly decide on the choice.
How to choose the right hammer drill for home use?
Assess the specifications correctly
In the process of choosing the most suitable drill, pay attention to three main characteristics that will help you determine for which types of work this or that model is suitable.
Electric motor power. The larger it is, the correspondingly more difficult and serious work you will be able to perform in the future. But, as a rule, high power is the main reason for significant weight, which is important to consider if long, uninterrupted periods of use of the tool are planned. Therefore, you need to choose the best options for the power / weight ratio.
Rotational speed. The more revolutions the drill makes in a certain time interval, the higher the rate of drilling holes. High speed is important if you plan to make numerous small holes in wood, metal or concrete.
The amount of torque. It characterizes the ability of the drill to overcome resistance when the spindle rotates. High torque is especially needed when working with fasteners: the higher it is, the larger the screws you can handle. This characteristic is also significant when choosing models for mixing mortars, mixtures, paints and varnishes, since mixing large volumes requires a high torque from the drill.
Decide on the type of drill
The nature of the proposed housework will help you fully determine the type of drill you need. If, for example, you only plan to drill holes in wood and metal, then the best option would be a traditional hammerless drill, equipped with an excellent powerful electric motor and high rotational speed.
To carry out work in the absence of a continuous source of electric current (for example, in a country house, in a personal plot), a cordless drill-screwdriver will be needed. These tools are equipped with multi-speed gearboxes and a reverse function, which allows you to drill material at high speeds, and at low speeds, using a large torque, work with fasteners. They will be very useful when assembling furniture, when installing interior fittings in an apartment or in a country house, when carrying out finishing work in buildings on a personal plot (sauna, gazebos, etc.).
When working with concrete, stone or masonry, it is rational to opt for impact drills. The design of such devices is such that, together with the rotational movements, the drill is also capable of performing reciprocating blows, which makes it possible to obtain holes in a material with a high density. However, you should be aware that such drills are not designed for intensive work on reinforced and heavy concrete due to the increased wear of the impact mechanism. The hammer drilling function is not the main one and is used for irregular (i.e. in case of urgent need) making holes in hard materials (installing curtains, drilling walls for dowels and screws for hanging shelves, paintings, carpets, cabinets and much more).
The main advantage of such drills is their versatility in use, that is, they can be used both for ordinary drilling in metal and wood, and for periodic drilling with impact on concrete, stone and brickwork. Angle drills and mixer drills are purchased for home use if a large amount of construction work is expected, for example, during a major renovation of a private house or a large apartment.
Take a close look at additional features
Each model, without exception, has a certain set of functions that make it easier to work with a drill and expand the range of its use. When choosing a tool, carefully read what functions it performs, and then evaluate their usefulness in the future use of the tool. For example, the presence of the reverse function allows you to rotate the drill spindle in the opposite direction. This will be very helpful in removing a jammed drill. In cordless drills-screwdrivers, the presence of a reverse is simply necessary, since, first of all, it is needed to unscrew screws and self-tapping screws.
The presence of the spindle auto-lock function will allow you to change equipment relatively quickly. For the same purpose, it is more rational to purchase a drill with a keyless chuck, which will significantly save time for replacing drills and nozzles.
Many models are equipped with a wide variety of electronic control and regulation systems that allow you to monitor the speed and continuous rotation of the spindle, the temperature of the electric motor, the load on the gearbox and much more.
Compare the ergonomics of one model or the other for ease of use. pay attention to the shape of the handle, its location, the presence of rubberized pads and inserts.
How To Choose A Cordless Drill or Impact Driver. Ace Hardware
Professional models for household chores
Drills for domestic use are distinguished, as a rule, by a plastic case, low weight and low power, excellent ergonomic performance, functionality, and most importantly, low cost. But, despite all this, many people prefer to choose products belonging to the professional class for the home. Such drills have a stronger motor, partially or all-metal body, are optimally resistant to overload and long-term use. Tools of this class will fit in when carrying out full-scale home construction, major repairs, when erecting homestead buildings and laying communications inside residential premises.
Principles of classification by power sources
The electric motor of the drill can be created to be powered from a 220 volt household network or removable batteries based on the use of one of the combinations of metals for the electrode plates:
- nickel metal hydride;
The first two types are environmentally friendly. Lithium-ion batteries have low self-discharge. Nickel-metal hydride batteries, when properly used, have a long guaranteed lifetime of charge and discharge cycles.
Nickel-cadmium models work better than others at low temperatures, are cheaper, but they have a memory effect that requires correct implementation of the charging technology.
Cordless drills are not tied to a 220 electrical network, work well in autonomous conditions.
In terms of its functionality, any drill solves the main task. drilling holes in some specific types of materials:
- steel alloys;
- non-ferrous metals;
For this purpose, a large assortment of drills has been created for specific tasks and a variety of working bodies in drill designs. They are designed to operate under rated load at specific rotor speeds.
Concrete slabs, bricks, stones have increased strength, are poorly cut with a rotating drill. To create indentations in them, another method is used: inflicting frequent blows. This principle is implemented in another power tool. a hammer drill.
Modern drills are also equipped with an impact mechanism, but their capabilities in processing concrete materials are significantly limited and are only an additional function for elite models, because the main force of the tool is created by the application of torque.
Due to these differences, a drill with a power of 800 watts will cope worse with creating a hole in a concrete slab than a 700 perforator. At the same time, it is easier to drill metal with an ordinary drill than with a perforator of equivalent power.
To start the electric motor of the drill, you must use the buttons located on its handle. In this case, you can choose:
- direction of rotation for models with reverse;
- short press / release of the power button to turn on / off the voltage from the motor;
- one-time pressing for long-term rotation of the working body without the mode of holding the button and again. to turn it off.
The third control method is intended for use with stationary fixing of the case in the fastening devices and manual feed of the workpiece. It is impossible to perform drilling using this method while holding the tool with your hands, because it is quite possible for the drill to jam in the material being processed.
Then the torque will begin to be transmitted with a powerful impulse to the body, forcing it to rotate around the stopped drill. The operator holding the tool in his hands will receive a powerful blow that he cannot resist.
The drill will break out of your hands, and the switch will supply voltage to the engine. The consequences of such actions are dangerous, they cannot be predicted.
For hammer models, you can choose between clean drilling and hitting with simultaneous rotation.
Attachment of the working body
Chucks that clamp the drill can be used as part of the drill:
- cam mechanism using a special key;
- or with a quick-release device, controlled by the force of the operator’s hand.
The latter design allows for more convenient drill replacement. This advantage affects the case when it is required to create many holes of different diameters, to complete the work in a short time.
The turnkey chuck requires the key to be removed from the engagement after the drill is clamped. In order not to throw it anywhere and waste time on subsequent searches, experienced craftsmen tie it through the hole inside the handle to the power cord of the drill near the plug attachment.
This makes it easier to find and saves time, and at the same time does not allow you to change drills when the power cord is plugged into the outlet.
Drill mixers are produced in a separate class with motors designed to operate at reduced speeds with overcoming high resistance forces created by dense mortars. Their working body is made in the form of a spatula or a drill, which ensures mixing of paints, putties and other solutions. The design of such a tool provides for a reserve of engine power and methods for increased heat removal from the windings, which increase the resistance of mechanisms to overheating.
Angle drill has a head design that allows you to work in hard-to-reach places with limited space at an angle of 90 degrees to the axis of the body.
The drill-driver has the ability to adjust the torque at low speeds. It is convenient for her to tighten or remove self-tapping screws or screws in large quantities.
The universal corded drill is widespread, endowed with many functions:
- regulation of the speed of rotation of the working body with a smooth start of drilling at low speeds and a gradual increase in the number of revolutions to the optimum value;
- shock mechanism.
Such designs are developed to perform technological operations during the working day of the contractor. They can work reliably about 7-8 hours a day.
Many manufacturers are trying to distinguish these models from the total number of instruments in the blue color of the case. And the controls and operating rules for these models have not changed.
Principles of classification according to the reliability of mechanisms
Electrical tools are manufactured by manufacturers to drill holes under varying loads without exceeding the rated motor shaft power. According to this indicator, they are divided into three classes:
- household use;
- professional tool;
- industrial devices.
How the drill works
Briefly, the design can be presented:
- housing made of durable dielectric plastic;
- an electric motor consisting of a stator and a rotor with windings;
- collector unit with brushes;
- buttons and a switch with thyristor regulation of the voltage supplied to the motor;
- a worm gear for transferring rotation from the engine to the working body;
- chuck for holding drills;
- air cooling system;
- additional devices.
The arrangement of parts of one of the types of impact drill is shown in the explanatory figure. It is clickable: when you click on the image, it increases in size for easy viewing. It can be seen here that the locking latch is inserted between the stationary and rotating gears and rolls between them, which excludes the possibility of their contact with the relief toothed surfaces. This mode is created for conventional drilling and removal of the hammer mechanism from work.
When it becomes necessary to knock out holes in stone or concrete structures, the locking latch is removed from the gear engagement with the “impact-drilling” switch. The movable gear begins to press against the stationary and, rotating under the force of the engine torque, rolls with its relief along its figured surface, rises along its bulges and falls into the depressions.
In this case, the gear shaft, on the reverse side of which a chuck with a working body is mounted, performs not only rotation, but also a reciprocating motion, which creates blows of the drill on the concrete being processed.
For these blows to be effective, it is necessary to press the drill firmly and with good force through the drill body into the drilled hole. This feature of the work of this percussion mechanism significantly reduces the engine power to overcome friction forces.
The simplest drills do not have this function.
By type of food
According to this criterion, drills are divided into 2 types. Power is supplied through the network or through the battery:
- Electrical. It has an electric motor that is powered through the network. Always have an outlet close at hand when using the tool. They are cheaper than battery-powered devices.
- Rechargeable. With such a drill, it is convenient to drill in places where there is no electricity. The cord does not hinder movement, it is very convenient to work. The tool has great mobility.
Low speed is 300 watts. A tool with this power can handle a small amount of work.
Household tools power 300-800 W, professional 800-1500 W.
Drill power. determines its operational potential.
Important! If you give a large amount of work to a drill for a home, then it will soon fail.
When buying a device, a man must know exactly what holes he needs. With a large breakdown of a fragile surface, there is a chance of breaking it. Therefore, in order to choose the right drill, you need to know the properties and structure of the coating.
The device is divided into three main types. Division by scope:
- Professional use. Such tools are intended for the professional field. They are used by masters of their craft, for example, builders.
- Household use. The drill is intended for home use. Have a low price and are easy to use, often have additional functions.
- Semi-professional. They can withstand heavy loads. They have average power.
Important! According to the principle of work, professional and household drills are no different, but the difference is their power.
Professional use devices serve much more, can perform impressive volumes of work.
How to choose the right drill for your home
A drill is a tool that is essential for home repairs. The tool is useful for repairing furniture, restoring an apartment and a house. However, not all of them are suitable for home repair, there are several criteria for how to choose a drill for your home, which you should adhere to.
- By scope
- By type of destination
- By type of food
- Shaft rotation speed
- Cartridge types
- Drill diameter
- What else to pay attention to
Shaft rotation speed
For any device, all parameters are registered in the passport. The quality of the work performed depends on the speed. The higher the speed, the better the polish.
To screw in the bolt, a high speed is not needed, 400-500 rpm is enough. To drill concrete, you need to pick up a drill with 3500 rpm. Rotation speed is needed not only for high-quality, but also fast work.
There are two types of drill chucks. The chuck plays an important role in the tool. May be:
The key cartridge is essential for powerful and percussive instruments, but it has one drawback. You must keep the key with you.