DEKO electric screwdriver how to insert the drill. bits for electric screwdriver and bit replacement

DEKO Electric Screwdriver how to insert the drill bit

Under the electric screwdriver is supposed to the same drill, but it has a slower speed chuck and the ability to regulate the power of tightening. No one has ever been able to enjoy hours of screwing or unscrewing by hand. Electric screwdriver will help quickly and efficiently tighten and unscrew fasteners. You can also use this device to make holes in materials of varying density. metal, wood and stone. The electric screwdriver is powered by mains or battery.

Dummies screwdriver.

The construction device is divided into the following types:

All types of tools differ only in purpose: an electric screwdriver (ordinary) is used exclusively in work with fasteners, a drill will help drill the necessary hole, a screwdriver is designed for twisting and unscrewing parts of fasteners with a cross-shaped “cap”, a device with a talking name nutcracker perfectly copes with bolts and nuts.

Types according to application

The application variant is determined by the shape of the working part of the nozzle. According to this principle, they are classified into the following types:

• for bolts and nuts;
• with anti-vandal slot;
• with fork-type construction;
• spring and magnetic;
• for drywall;
• for professional use.

The first option allows you to tighten or unscrew bolts with nuts. They are distinguished by the non-standard shape of the working part, which, unlike other samples is not convex, and has a hole. The advantages of these bits include a wide range of sizes.

Vandal resistant version is also called “snake-eye”, because the shape of their tip is adapted for a fork spanner. Models with the “fork” design are a variation of the previous type of bit. Externally similar to the flat head variant, but with a slit in the middle. They are made of high-quality steel, so durability, strength is one of their advantages.

A spring clip ensures secure fastening of the nozzle in the adapter. Magnetic tips provide good adhesion to the fastener’s notches that prevent the head from slipping. Such variants guarantee comfortable screwing of screws, self-tapping screws in hard-to-reach places, on the ceiling covering. A flexible spring allows fasteners to be tightened at an angle greater than 90 degrees.

Plasterboard nozzles differ in the presence of a limiter, which prevents damage to the material when performing installation. Experts recommend avoiding strong pressure when screwing in self-tapping screws, as plasterboard is very fragile.

Professional bits are characterized by their reliability, high durability and long life. Made of high-quality metal, coated with a special protective coating. They are chosen for screwing many fasteners. If more than 400 screws are fastened with such a bit, there is no need for replacing it.

The professional models include a torsion bit for an electric impact screwdriver. In appearance, it is distinguished by the narrow area between the shank and the slot. There is also a flexible insert in the form of a spring that works for twisting. This feature enables a self-drilling screw to be driven into hard materials (e.g. into a self-drilling screw with a head in metal).

Experts recommend to buy different versions of accessories as a complete set, because it is more expensive to buy them one piece at a time.

What to do if the drill bit jams

Often craftsmen ask how an electric screwdriver can change the nozzle, if it is stuck in the chuck, you can’t get it out. The cutting element can jam in the drill for the following reasons:

• If you insert the tool more than the maximum allowable size. Cams are pushed as far as possible, but it is not possible to squeeze them all the way or then to unclench them in order to extract the drill bit.
• Large amounts of chips, debris or scale have accumulated under the shaped parts of the jaws. In this case the jamming of the cams is caused by the free play of the clamping and unclamping torque.
• Overheating, insufficient sharpening, poor workmanship, or an incorrect drilling angle can cause the bit to break while working. The tooling jams because the size of the shank does not match the chuck’s clamping mechanism.

It’s not a good idea to pull out the drill bit yourself if you don’t have the necessary knowledge and skill. To solve the problem, it is recommended to contact a service center or a specialist.

The most proven method to help remove the cutting element is to tap on the cams. Chuck is removed from the unit and grease or oil is poured into the socket for 15 minutes. Then clamp it in a vice and put a wooden bar against it, through which the tapping is carried out.

This loosens the grip of the cams and makes it easier to remove the nozzle. After filling the inside with grease, the chuck can be warmed up with a hair dryer. Liquid penetrates into the place where the drill bit jammed, allowing it to be removed.

The problem can be solved with 2 adjustable wrenches. Clamp the base of the chuck with one and try to unscrew it with the other, gently rotating the upper part. To reduce the risk of damaging any parts, use soft, thin, but firm spacers.

In some cases it helps to remove the jammed element by cooling down the toolholder. The cams loosen the grip on the tool and the tool can easily be removed.

Chuck types

The clamping devices of screwdrivers are divided into:

The difference lies mainly in the fact that the self-clamping models fix products automatically.

If your tool has a locking mechanism, you can use single clutch cylinders.

In the absence of a locking device, you have to use the double-clutch type.

Items with one sleeve can be clamped with one hand.

The other type requires the involvement of both hands.

Quick- and self-clamping models are designed mainly for modern tools.

Models with automatic clamping is convenient for those who have to quickly and frequently change different attachments.

Key variants are less convenient, but more reliable. They clamp better and are more resistant to shock loads.

If the cylinder is to be used intensively, it is advisable to choose an electric screwdriver with a wrench.

The fastening device is a non-driving chuck

The chuck is the fixture in which the drill is secured. The fastener itself is screwed onto the tool spindle. Most often, drills are equipped with a cam chuck. This design is a hollow cylinder with metal “fingers” inside. Turning the adjusting ring on the outside of the knot causes the “fingers” to move in and out of alignment with the inner tapered surface. Drill bits with a cylindrical shank and drill bits with a hexagonal shank can be clamped in the drill jaw.

The convenience and ease of use have made the cam-action mechanism very popular. But it is not without its disadvantages. One of them is that it is difficult to work with small drill bits. A short workpiece can simply fall in. To fix it, it is still possible, having put the drill in a horizontal position, but to press it strongly in the process of work is impossible. If another drill bit has been inserted in the drill, it can be removed by turning the adjustment ring in the corresponding direction. It is not always possible to do it by hand, for this purpose, and there is a special key, which acts as a lever, increasing the force. By the way, to tighten the drill without a wrench is also not recommended. the larger the diameter of the drill, the more secure must be the fastening.

When buying a fastener make sure it is rubberized, so you will injure your hands less when you fasten the tool.

operation of the quick-action fastener. the second most popular. is possible without a wrench. It is enough to insert the drill bit and twist the lever, which can often be done with one hand. Locking the drill, which provides this type of chuck is quite enough for most jobs, but compared to the classic version of the mount, it is inferior in terms of reliability, and costs more. The main advantage of the quick-change chuck is the speed of drill changing and the safety of the process, because this chuck has no teeth that can injure your hands. The lack of a specialized wrench is also a big advantage! Seasoned builders know how easily it can get lost, so very often you may see a wrench taped to a wire with duct tape or duct tape.

True, it does not add convenience, but there is at least some confidence that the key does not have to look all over the construction site. How to change a drill bit in an electric screwdriver? The scheme is absolutely identical. the chucks in most drills are similar to the fasteners in screwdrivers. Of course, the latter tool can not be a full-fledged substitute for a quality drill, if only because the fastener is not provided for drills with a large diameter, and the speeds of an electric screwdriver, as a rule, less.

How to use the battery

Advantages include low price, high number of charge-discharge cycles, possibility of operation at low temperatures. The disadvantages are the loss of 8-10% of capacity during storage, “memory effect. Each time an inadequately discharged power supply is charged, its capacity will gradually decrease. If the battery is not used for a long time, it will be ready to work after 5 charge-discharge cycles.

Lithium-ion models are attractive because they have no “memory effect. They can be charged at any degree of discharge. The advantages are low weight, low self-discharge (up to 5% per month), the speed of charging. The main disadvantages are high price and rapid discharge at temperatures below 0 degrees. These batteries should be stored at half charge.

How to use a cordless electric screwdriver is described in detail in the unit’s instruction manual. Even the most expensive models can work on a single charge not more than 2 hours, so many manufacturers complete the tool with a spare power source.

To charge the battery with the help of an ordinary or pulse charger. The capacity replenishment rate in the first case is 2-6 hours, in the second. no more than 1.5 hours. Some models provide fast charging. 30 min. Connecting the battery to the charger, you need to control the correct alignment of the polarity on each item. The beginning of the charging process is indicated by a red LED light and the end of the charging process is indicated by a green LED light.

Modern batteries are equipped with overheat protection, so they can be left on charge without fear of premature failure for a long time. However, it is not recommended by experts that the process lasts more than 24 hours.

Getting ready for work

Before starting work, appropriate preparations should be made. To determine if the tool is ready to perform tasks, there are several conditions:

• When the drill is started with the power cord, it must be plugged in;
• If it operates with a battery, the battery must be connected and charged;
• The drill is inserted and secured inside the drill.

To check that the drill is working, click on the power button. If the chuck spins fast enough, it means there is enough charge and you can start working. If it rotates very slowly, the battery is flat and must be recharged.

Design and purpose of an electric screwdriver

The electric screwdriver is a kind of drill. It differs from a usual drill with a slower chuck rotation speed. That’s why it is commonly used for work on various fasteners. It helps to unscrew it quickly, as well as tighten it properly in the right place. And you can adjust the tightening torque.

But this is not the end of the features of an electric screwdriver. The tool is capable of threading and drilling holes in a variety of dense materials. Easily does it in plastic and wood. Can handle stone, as well as almost any non-ferrous metal. It can also overcome steel. True, not all.

Not a single car workshop can do without this tool. It is indispensable for furniture assembly. But it is also popular in construction and repair work. It can also be used in everyday life. The electric screwdriver has made many small tasks easier for do-it-yourselfers.

And the convenience of its use is due to the autonomous. Most of the models offered are battery-powered. But there are also variants that are only connected to the mains. Let’s understand how an electric screwdriver works by examining its design.

The tool consists of basic elements:

• The electric motor;
• gearbox;
• speed switch;
• torque control clutch;
• chuck;
• reverse switch;
• battery and power cord.

The principle of operation of an electric screwdriver is simple. The nozzle is pre-fixed in the chuck. An electric motor is responsible for its rotation, starting the movement of the shaft. And the latter starts its stroke through the gearbox, which can regulate the number of revolutions per minute. And for this, there is a special switch on the body of the tool.

Let’s take a look at how to properly use an electric screwdriver. After all, many users often disregard the special clutch, which is capable of limiting the force. You can see it on the rotating ring with the numbers at the side of the chuck. To set the desired setting, the clutch is moved into position by clicking.

Highest speed for large screws and self-tapping screws. Also for drilling holes, if this function is provided by the manufacturer. Small fasteners can easily get damaged if too much torque is used. Therefore, the competent use of a ratchet is justified in order not to cut off the slits of self-tapping screws, as well as to reduce the wear of the bits.

And also the clutch is able to control the depth of screwing the screw. If too high torque is used in soft materials, the screw head could be sunk too deep. Or even drive the self-drilling screw through. That’s why you should do some test runs to find the right setting on the rotating ring. And only then proceed to screw in the fasteners en masse.

Little tricks

Sometimes craftsmen may have a question, how to insert the drill bit in an electric screwdriver, if the drill bit has a diameter less than the minimum allowable. If it is necessary to get very small holes in radio components, plastic or metal, sometimes it is necessary to use very small drill bits. And without any extra finesse, it is unlikely that a drill of this size can be clamped in the chuck.

The easiest way is to wind a thin copper wire (0.2 to 1 millimeter) around the tail end of the drill. If thin wire is not available, you can strip the insulation off a stranded copper wire and pull one strand out of it. Wind the wire very tightly with no gap. Cut off the remaining length of wire.

One of the options in this situation is to wrap a piece of paper around a thin drill bit.

This increases the diameter of the drill bit shank and ensures a firm grip in the chuck jaws.