Which Trimmer Disc Is Better

Varieties of trimmer discs

The trimmer disc is available in different materials. And in order to decide which trimmer disc is better. metal or plastic, you need to decide what you will mow. So, a plastic disc is designed for short and thin grass, while a metal disc can easily cope with very thick and tall grass, bushes, dry grass.

The shape of the cutter disc for the trimmer can be with 2, 3 or 4 cutting edges. Typically, these accessories are included in the basic set of tools for low and medium power. With it you can fight dense grass and small shrubs.

On powerful and professional equipment, saw blades are installed, which have up to 80 teeth, and sometimes also carbide (victorious) soldering on the teeth. Such a victorious trimmer disc is rarely used in private households; it is mainly used on professional lawn mowers. It has a very long service life and versatility for both fresh grass and dry, impenetrable weeds.

The discs also differ in blade thickness, which can be from 1.3 to 4 mm. Thin discs cut grass cleanly, quickly and accurately, however, they become dull faster. The thickest knives do not wear out for quite a long time, but are more suitable for coarse growth and weeds.

As practice shows, the most common shape of a trimmer knife is round with teeth around the circumference. A variety with 4 large teeth and a row of small teeth between them is also becoming a frequent choice. They most effectively help in cleaning the area, are easily installed on any trimmer model.

Disc trimmer benefits

When mowing tall grass, it often gets tangled on the line and trimmer reel, which requires you to stop work and pick up these balls of grass with your hands. In addition, over time, the trimmer coil may break from this. As for the cutting blade. it can handle tall grass with ease.

The disc is also more effective when you need to cut dry grass, burdocks, hogweed, bushes and undergrowth. The only thing a knife is afraid of are stones. For haymaking, the trimmer disc is the ideal solution.

over, metal discs do not wear out, so they do not need to be changed, unlike fishing line, which eventually deteriorates.

Which Trimmer Disc Is Better

Trimmer disc

The trimmer is a fairly common garden tool purchased for cutting grass. Models with a line are suitable for soft grass, but if you need to deal with coarse growth and shrubs, you cannot do without a disc trimmer.

Fitting the disc to the trimmer and observing safety measures

After you have decided which disc to take for the trimmer, you need to learn how to install it correctly. Initially, make sure that the bore on the disc is the correct hole, otherwise the disc will simply not fit your trimmer. And if you do succeed in securing it to the instrument, the disc may jump off during operation and seriously injure you.

Usually, each manufacturer for each model of the produced equipment also produces the corresponding equipment, so the choice of a knife should not be something very difficult. When you have installed the disc, check how securely it is attached.

If the disc is metal, it can only be installed on a trimmer with a straight bar, as this is due to the design of the unit. When mowing grass, bushes and thin trees, the disc, bumping into an obstacle (for example, a stone), bounces back, that is, in your direction. And when the bar is straight, the distance from the head to the feet is sufficient for your safety.

By making cutting edges

  • With two tines. for young soft grass, lawns;
  • With three tines. for young grass, dead wood, weeds;
  • With four tines. for tough grass and young tree shoots;
  • With eight teeth, mows grass without too much chopping;
  • With 24 teeth. for hard and dry grass, shrubs, thin trees;
  • With 40 or more teeth. for mowing any grass, bushes, trees;
  • 80. for professional lawn mowers.


  • With two. for soft and low braids;
  • With three. for mowing weeds;
  • With four or more. for mowing grass for hay.

Lawn mower discs: what are they, how to select and install?

Lawn mower knives are irreplaceable. It is enough to choose the right one, and you can use them to mow huge areas of grass. Of course, the variety of knives complicates the task of selecting them somewhat. To understand which cutting element is needed, you need to familiarize yourself with the main ones. You should also find out in advance about the correct sharpening and operation of knives.

By material

The lawn mower disc can be made of metal or plastic. It should be clarified that for electric lawn mowers, plastic blades should be preferred. They fit perfectly with the curved shaft of this tool, which doesn’t separate too much between the work area and the mower’s legs. Plastic knives are good at mowing overgrown dry grass, for example, nettle or burdock trunks.

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The metal knives are only suitable for the petrol trimmer. This is due to the flat bar that moves the disc away from the feet to a safe distance. Special shaped handles also contribute to safety. When hitting a solid object, part of the impact is absorbed by the engine clutch. Iron knives are suitable for mowing grass from large areas, weeds, bushes, young trees.

How to sharpen and deliver?

a lawn mower with constant use will sooner or later begin to need regular maintenance. One of the important points is the timely sharpening of knives. The metal disc can, of course, work in a dull state, but it cannot be used. This leads to reduced performance, overheating of the engine, wear of the gearbox. Sharpening the teeth or blades is a snap, but if you want, you can simply install new knives.

  • First of all, the knife is removed from the device. It is not recommended to sharpen directly on the lawn mower, as it is unsafe.
  • Next, you need to inspect the cutting element for chips, cracks, damage. If they are, then you will need to install a new disk.
  • You can sharpen the knives with a file, sharpener or angle grinder. The safest tool is a file that even a beginner can handle. For sharpening, the knife is placed in a vice, and then manually processed at an angle of 30 degrees. This method is considered the highest quality.

When using an angle grinder, it is important not to overheat the metal, otherwise the disc will quickly become unusable. an angle grinder with a fine abrasive wheel is suitable for sharpening discs with many teeth.

  • At the end of sharpening, the blade can be put back on the trimmer and checked how efficient the tool is. Do not handle the sharp parts of the knife to avoid injury.

Over time, the knife will wear out and should be replaced. Fitting a new disc to the trimmer is a snap. This procedure takes no more than 5 minutes of time, if you follow simple instructions.

  • First you need to remove the protective cover, but on some models it may remain. For example, metal covers cannot be removed from the lawn mower.
  • Next, you should take a key with six faces (hexagon) and use it to block the gearbox. The hole for blocking must be sought from the side or from the end.
  • After that, the mowing head must be unscrewed from the lawn mowers.
  • Then a disc will be installed in its place. It should be noted that the inner diameter of the knife must be completely located in the groove reserved for this. The face of the nozzle should be with the letters facing up.
  • Now you need to fix the disc with a special washer and screw the fastening nut counterclockwise. Before doing this, it is necessary to block the gearbox shaft.
  • The last step is to install a protective plastic casing.

Species overview

For lawn mowers, preference should be given to special knives. They allow you to cut taller, tougher grass than line. In addition, the knife is suitable even for pruning young bushes.

Each species has its own characteristics.

Manufacturers overview

There are a lot of manufacturers of lawn mower discs. It is worth familiarizing yourself with the most popular among them. For example, the Bosch brand is known for its knives with two and three blades. The peculiarity of the knives of this company is that each of the blades can be replaced separately from the others.

Another firm known for its bladed knives is Shark. The advantage of the design is that the blades are fixed relative to each other at an angle of 120 degrees. As a result, it is easy to adjust each of the blades, which is convenient for different vegetation. Another feature of knives from this manufacturer is light weight.

Husqvarna is also known for its multi-tooth knives, especially the hay knives. Ideal for dense and dense grass. Of the minuses, it is worth noting the large weight of the discs and the fact that you cannot turn the knife over if one side of it is sharpened.

Inforce knives do a good job with underbrush and branches. In practice, the metal from which the cutting elements are made shows itself to be very durable. The only thing is that in some models, victorious soldering is erased very quickly.

Rezer discs are excellent at mowing grass, weeds, branches. The teeth can withstand well even cutting down trees 6 cm or more thick. However, they have a drawback in the form of winding grass on a shaft.

Patriot produces quality knives. Users note that if you select the right disk for a specific job, then it will serve for a long time and amaze with its performance. Knives from this manufacturer are very easy to sharpen yourself.

How to choose?

There are many things to consider when choosing a mower blade. For example, metal toothed discs are most often circular in shape. The teeth can vary in shape, appearance, size. For small trees and thick grass, it is better to give preference to discs with a large number of teeth.

It is worth noting such an advantage of milling discs for lawn mowers, as a quick set of revolutions. However, a high moment of inertia does not have the best effect on the machine drive. For dense mowing, for high, as well as for small coarse grass and bushes, it is better to choose circles with 40 or more teeth and perforation. They are able not to chop up the vegetation, and at the same time it will practically not wrap around the circle. If the number of teeth is more than 60, then you can safely mow grass and trees with a trunk thickness of up to 7 cm.

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Solid discs and discs without holes are heavy and should be chosen for powerful trimmers (over 40 cm3). At the same time, they are convenient for mowing rare grass, dead wood, they are also suitable for mowing with different densities.

Victory-tipped discs should be chosen for mowing plants near obstacles. If you need to mow grass for hay, then steel knives with a large number of teeth with an even sharpening should be preferred. Solid discs with 16 to 32 teeth cut well plants with thick stems.

For low power trimmers, paddle discs with a minimum moment of inertia are better suited. The smaller the blades, the more the tool will chop the grass. So, discs with two blades are most often used for mowing uniform grass. The main advantage of this species is that it throws cut plants to the side.

The thickness of the blades is also important when choosing. Discs can be stamped or forged. The former are distinguished by a low price, but at the same time they can be severely damaged when faced with an obstacle. As for forged wheels, they do not chip and cut when colliding with hard objects.

For electric trimmers, choose only plastic blades. Their low weight will not put unnecessary stress on the engine. The soft plastic allows the knives to not break when facing an obstacle, but simply bend or deform slightly. It is recommended to use such cutting elements for cutting thick soft grass.

By form

Knives with disc blades and several blades, which are at a certain distance from each other, are distinguished in shape. The shape of the blades may also vary. It should be noted that this does not affect either the speed or the quality of the lawnmower’s work.

How to properly mow the grass?

Mowing begins with the start of the lawn mowers. It is best to do this on the ground to make it safer. Also, before working with the lawn mower, it is advisable to put on an unloading belt, which can be on zip ties or a carabiner. After starting, the tool is attached to the belt and you can start working.

An important point before mowing is belt balancing. Correctly, if the load on the operator’s hands is minimal. The mower only moves the device with his hands, otherwise he will get too tired.

The tool must be smoothly moved to the right and left. The trimmer must be at the same distance from the ground. It is important that the operator moves slowly (“duck steps”).

It is not easy for beginners to keep the momentum at the same level. Depending on the density of the grass, the speed should change. For example, cutting young grass does not require much power at all.

It is important to feel the work of the unit. After all, if the lawnmower cannot cope with the grass, then it is necessary to increase the speed. However, continuous operation at high speeds will quickly wear out the tool.

Experts recommend that when mowing with a petrol trimmer in one direction, increase the speed, and when moving to the other, release the gas and take a step forward. This method is especially suitable if you need to lay grass in swaths.

For information on the types of lawn mower discs, see the following.

Advantages and Disadvantages of a Plastic Disc

While metal gear and paddle wheels are installed on gasoline trimmers, plastic ones are more suitable for an electric tool. The most important thing in them is their very low weight, which completely eliminates unnecessary load on the engine. A plastic circle is a base with knives attached to it. Knives are made of soft plastic that can bend without subsequent deformation. The knives themselves are attached to the base at an angle of 120 degrees.

Advantages and Disadvantages of a Vane Disc

Compared to teeth, this type is much lighter and is suitable for installation on low power trimmers. Its main advantage is the minimum moment of inertia, which makes it possible to take good care of the drive mechanism. The fewer blades such a disc has, the more the grass is crushed. Two blades are enough for mowing uniform thickets, because they can immediately throw the grass to the side. blades are needed to prepare hay in the field, because they do not chop the grass and thereby relieve the load on the mechanism.

Which trimmer disc is better: serrated, paddle, plastic

For cutting grass in a hand trimmer there is a fishing line or various types of discs. The choice always depends on the tasks assigned to the mower. The fishing line is often used for non-professional work, for example, at your summer cottage. Circles are installed with a large amount of work and a serious approach. If you do not know about the properties of various types of discs, their features, and cannot make the right choice, this article will help you. You will learn about the advantages and disadvantages of the three main types of trimmer disc. serrated, paddle and plastic.

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The advantages and disadvantages of a toothed disc

The metal toothed discs are circular in shape with multiple teeth at the edges. The teeth themselves can be of different types, have different shapes and sizes. The more teeth, the better the device does its job. And the tasks of the toothed type include mowing dense thickets and even small trees. The advantages of such parts include the fact that the trimmer picks up speed faster with them. At the same time, the moment of inertia also increases, which negatively affects the drive device, and it breaks down faster, since the motor overheats and often stops.

This type is also divided into two types. perforated, that is, with holes in the disc itself, and ordinary monolithic. The former do an excellent job of their task, but have a high price. The latter are much cheaper, but have a significant drawback. their weight. Due to the monolithic metal structure, it is not recommended to put them on braids with an engine volume of less than 30 cm3. the mechanism simply will not take the load.

Which is better depending on the tasks

Each type of disc performs better in the task for which it was created. The toothed wheel is suitable for mowing dense, high and small, coarse thickets or bushes. This is because the large number of tines avoids winding and subsequent problems. Its problem is that it is only suitable for high-power equipment.

At the same time, the blade discs are suitable for mowing the same type of thickets. They are most often used for mowing grass in the field and preparing hay, because they can, without chopping the grass, not load the mechanism. Plastic knives are more suitable for small and dense thickets. They are used on personal small plots. summer cottages or backyards. Now you have figured it out and you can finally choose for yourself exactly the disk that you need.

Which trimmer disc is best

Abrasive tools that are used to process a variety of surfaces include: grinding discs, bars, heads and segments, abrasives for grinding various materials and belts with abrasive spraying. For at least a small idea of ​​the huge variety of processing tools, just look at the photo of abrasive discs.

Abrasives used to make grinding wheels include diamond grit, quartz stone, corundum, silicon carbide.

Abrasive discs for metal are used to make the surface of metal workpieces more pleasant to the touch, with smooth edges.

Where abrasive grinding wheels come in handy

Discs that can be used in the work of an angle grinder are considered universal, therefore they can be used to process almost any surface. Thanks to such discs, you can cut, peel, clean and grind a variety of products.

The types of abrasive discs can be divided into 2 groups:

  • Grinding group.
  • Cut-off tooling.

Grinding wheels include products that remove rust, help peel, grind, polish, and clean the part. Exceptional cutting discs are used to cut different materials.

What are the wheels for grinding

In order to properly machine parts, it is necessary to select specific types of grinding wheels. Before choosing a grinding wheel, you need to determine the material of the part that is being processed, and also take into account the force with which abrasive material acts on the part.

Specialized ones are used exclusively for working with certain material and spare parts. Universal ones have lower performance, but they are considered more convenient when working with reinforced concrete and other types of parts.

What are abrasive grinding wheels for?

The polishing of any element is not only the visual appeal of spare parts and materials, but also dictated by the rules of the technical side. In everyday life we ​​come across objects with polish. these are elements of the interior, decor. In industry, they polish the details of machine tools, various mechanisms, machines.

In nodes that move, all parts must fit snugly together, and polishing is used in order to minimize friction of parts.

Abrasive wheels for grinding parts have a variety of shapes. Each form is used solely for its own purpose. Special discs can be used to remove the appearance of rust.

There are a wide variety of attachments that can be removed from a grinder. Using such nozzles, you can make various grooves, recesses in soft alloys, non-ferrous metal products, ornamental stones, in concrete walls.

The most popular circles are for processing gemstones. Craftsmen who process such stones use them in working with precious and semi-precious stones.

Cut-off wheels

An important indicator that must be considered when choosing a cutting-off abrasive disc is the outer diameter. It is indicated in the technical specifications in millimeters. This is due to the fact that cutting discs for grinders have unified characteristics.

For household work, circles are enough, which have a diameter of 115 to 130 millimeters. Wheels with diameters from 125 to 230 millimeters are used for universal equipment.