Rating of TOP 12 brushes for an angle grinder: review of the best cord brushes, flap and grinding abrasive discs

What features of grinder brushes should you pay attention to when choosing?

When planning to purchase a brush for an angle grinder, you should consider the following points:

• Carefully examine the bristles: they should be the same length over the entire working area of ​​the brush. If it is fixed in bunches - sometimes higher, sometimes lower, sometimes thicker, sometimes less often - you will feel vibration during the process, and the result of the work will be worse than you planned.
• to such a parameter as the number of maximum revolutions per minute . After all, at a low speed, a high-speed nozzle will be ineffective.
• The smaller the diameter of the brush, the more time will be spent on work. But you don’t need a bulky model either: a very wide cleaning surface will overload the drive motor.
• The most budget-friendly ones are Chinese models, European ones are better in quality, but also cost more. Domestic companies sell goods of average quality and at an affordable price.

Reference! The most popular brands today are Hammer, Intertool, Dremel, Lessmann, Mastertool, Novotools, Dexx, Matrix, Wortex, Verto, Zubr, Sibrtech.

In the manufacture of nozzles, 4 types of brushes are used: corrugated, flat, rope and twisted.

The corrugated one acts gently on the surface due to the springing effect, the roped one can sharpen itself during the action, the twisted one presses harder, but serves less than the others, while the flat one is suitable for all surfaces without exception and is universal.

About brushes for the grinder engine

Current collectors have been called brushes since their appearance.
At that time, an element resembling a brush in design worked to remove voltage from the rotor of an electric motor. This solution turned out to be ineffective and short-lived. Therefore, this part was subsequently replaced with a more reliable analogue made of dense material in which the copper wire was clamped. Nowadays, the brushes for the electric motor of an angle grinder are removable. From time to time these elements need to be checked and replaced. This is due to the fact that the movement of the electric motor rotor provokes constant friction of the brushes. Therefore, the latter can wear out and lead to problems with the operation of the motor.

With frequent use of the tool, the need to replace the brush becomes inevitable. When this element wears out, interruptions in the operation of the device and the smell of ozone from sparks in the current collector appear. The first appearance of these signs means that a new brush for the grinder is needed. The price, as a rule, depends on the material of manufacture and the type of element.

The following types of engine components are popular on the modern market:

• graphite;

• coal;

• metalgraphite;

• carbon.

During production,
graphite components In addition to graphite, this current collector also contains carbon black and other binding elements.

Unlike graphite elements, carbon brushes are inexpensive.

This is due to the fact that the thermal processing method is not used in manufacturing. Craftsmen recommend buying carbon brushes as a temporary, affordable solution, since such elements are not intended for long-term use. Often this type of component for an angle grinder is used on household models.

A metal-graphite brush
for angle grinders is considered the most reliable.
This product contains particles of metal powder, which make the element much stronger. Often, a metal-graphite brush is installed on large professional equipment.

TOP 5 best cord brushes

Rating of the TOP 5 best metal cord brushes in terms of price and quality ratio.

Cord brush Hammer 207-105

The most popular shape among users is the cup-shaped cord brush.

It can be used to process large surfaces.

Whether you are an ordinary user or a craftsman, this brush will perfectly cope with cleaning metal products, flawlessly remove rust and paint, and help clean welding seams.

During production, 0.5 mm twisted steel wire is used, which will remove dirt even from hard-to-reach places.

Brass-coated steel bristles ensure durability of the unit and minimize the risk of corrosion.

The country of origin is China, the birthplace of the brand is the Czech Republic.

Specifications:

• length: 165;
• width: 110;
• height: 60;
• diameter: 75 mm;
• shank landing diameter: M14;
• gross weight: 0.25 kg.

Advantages

• hardly hits;
• the wire does not fly out;
• cleans efficiently;
• the integrity of the part is not compromised;
• high-quality assembly.

Flaws

• small pieces of wire fly during operation;
• on an angle grinder it is better not to set it to more than 10,000 rpm;
• The price is a bit high for such a device.

Cord brush BOSCH 2608622061

Cup-shaped brush with corrugated bristles.

This model is suitable for use with angle and straight grinders and drills, i.e. is professional level equipment from a world famous manufacturer.

Sanding metal surfaces, removing rust or paint - BOSCH 2608622061 can handle it all.

The diameter of the steel wire is 0.3 mm; due to its twisted shape, it easily penetrates into the most secluded places and pulls out even old dirt.

The shank used is M14. The rotation speed is 12500 rpm. Country of origin: Germany.

Specifications:

• outer diameter: 65 mm;
• wire thickness: 0.3 mm;
• gross weight: 0.07 kg.

Advantages

• the bristles do not fall off or come out;
• convenient size;
• good rotation speed;
• quality materials;
• affordable price.

Flaws

• rather weak;
• must be used with a speed controller;
• The wire flies apart during cleaning.

Cord brush Hammer 207-113

Decent radial attachment at an affordable price.

The working part of the Hammer 207-113 cord brush is made of corrugated steel wire.

By purchasing a nozzle with a diameter of 125 mm, you can not only remove old coatings and rust from metal surfaces, but also grind welds, as well as carry out rough grinding of workpieces.

An M14 nut attaches this equipment to the angle grinder spindle.

The shape of the cord brush is radial, which means that the user is guaranteed stability and efficiency of the work process even when processing surfaces with non-uniform topography.

The bristles are evenly distributed over the entire surface, the length of the bristles is the same, and does not leave scratches on the surface. The accessory unit is included in the kit.

Specifications:

• wire diameter: 0.5 mm;
• processing depth: 0.05-0.15 mm;
• landing diameter: M14;
• Purpose: metal and wood work.

Advantages

• enough for a day of intensive work;
• a fairly stiff brush;
• corrosion-resistant steel;
• does not hit your hand during the process;
• convenient blister packaging.

Flaws

• twigs often fly out;
• limited number of materials;
• small depth of metal processing.

Cord brush Hammer 207-102

A moderately soft cord brush used for final cleaning of wooden and cooking surfaces, processing welding seams, removing traces of rust and old paint.

The bristles are thick and smooth, due to which the surface of the workpiece is leveled evenly and neatly, the strength of the seams is also increased and static stress is relieved.

The brass coating on the bristles adds to the wear resistance. The steel wire is rigidly fixed to the steel base of the cord brush.

The cup shape is suitable for both curved and flat surfaces. The permissible processing depth is from 0.05 to 0.1 mm.

Rotation speed - 12500 rpm. Country of origin: China.

Specifications:

• weight: 0.21 kg
• length: 165 mm;
• width: 110 mm;
• height: 65 mm;
• outer diameter: 75 mm
• wire thickness: 0.3 mm.

Advantages

• high quality processing;
• increased resource;
• opening, the brush increases the cleaning area;
• sufficient penetration depth;
• price.

Flaws

• in some models the wire flies out;
• rarely on sale;
• smell.

Cord brush matrix 74632

This disc brush is one of the most popular angle grinder replacement parts.

It is successfully used for cleaning any surface from old paint, varnish and traces of corrosion, for grinding and polishing products.

The working part is a steel wire of small diameter, twisted into small bundles. The brush is made in the shape of a disk.

Braided bundles are so elastic that they allow you to work in the most difficult to reach places, cleaning out the dirt and grease that has accumulated there.

Nozzle type - flat, wire shape - twisted. Wire thickness: 0.5 millimeters.

You can attach the cord brush using a standard angle grinder wrench. Great wear resistance. The homeland of the brand is Germany.

Specifications:

• mass: 0.32 kg;
• length: 165 mm;
• width: 130 mm;
• height: 250 mm;
• bore diameter: 22.2 mm;
• maximum speed: 10,000 rpm.

Advantages

• ideal price-quality ratio;
• convenient to place;
• holds firmly;
• no beats;
• cheap.

Flaws

• you need an angle grinder with speed control;
• it is necessary to select fastenings (not suitable for everyone);
• for angle grinders with a 125 disc, it touches the grinder casing and sparks.

Grinder brushes: scope of application

Effective processing with a grinder is facilitated by correctly selected equipment. The brush attachment for angle grinders allows you to achieve high results in grinding and cutting work. The equipment is a disk or circle with pile. This attachment is also called
a cord brush or wire brush
. Just like any consumable, this element becomes prone to wear over time.

Regardless of the area of ​​application, the following materials can be used as manufacturing materials:

• steel;

• brass;

• polymer fibers;

• wool.

If everything is relatively simple with electric motor brushes - it is enough to change them from time to time, then with the equipment the situation is more complicated. The quality and convenience of the work performed depends on choosing the right work element. An angle grinder brush is used during machining of workpieces.

Different types of equipment are used for sanding before applying a paint layer or primer, texturing wood, removing old coatings, polishing, grinding corners and other operations.

Professionals recommend buying a brush for an angle grinder to successfully clean metal surfaces after welding or remove scale.

TOP 3 best petal discs

Review of the best petal discs for an angle grinder.

Hammer petal disc 213-017

Flap disc from a German power tool manufacturer: small but capable of serving you for a long time.

If you have to work with plastic or wooden products of any density, or with metal structures, we recommend purchasing this particular product from Hammer.

Firstly, it grinds surfaces perfectly, secondly, it has a long working life, and thirdly, it does not overheat during operation due to optimal heat dissipation during the entire process.

There are no harmful impurities in the product (and this is often the case with other well-known manufacturers), so interaction with it will not harm your health.

Suitable for both permanent and one-time jobs. Great for cleaning inside corners. There are 2 pieces in the package.

Specifications:

• grit (P): 60;
• landing diameter: 22 mm;
• diameter: 125 mm.

Advantages

• wear-resistant;
• affordable price;
• always on sale;
• good level of grain;
• There is a replacement included.

Flaws

• the abrasive on the wheel quickly crumbles;
• does not last long on a straight seam;
• a limited number of materials are allowed for processing.

Petal disc Vira 559125

The flap type grinding wheel is suitable for both primary and final machining.

Shows excellent performance when processing wooden and metal surfaces.

You can easily prepare the floor in your house for painting, or reconstruct the front part of a wooden house.

The petals are arranged radially in a fan-like manner, due to which the performance of this element is high (in comparison with similar consumables).

The internal (landing) diameter of the disk is 22.2 mm, the external one is 125 mm, the modification is flat. The nominal number of discs in a set is 1 piece.

Country of origin: China.

Specifications:

• grit: P25;
• purpose of the circle: wood, metal, plastic;
• maximum speed: 12000 per minute.

Advantages

• minimal vibration;
• good equipment productivity;
• affordable price;
• sparks and parts do not fly away;
• cleaning of welds.

Flaws

• Suitable for angle grinders only;
• no spare;
• quickly depletes its resource.

Hammer petal disc 213-016

An element for treating metal workpieces and surfaces from paint and corrosive deposits, processing welding seams, destroying burrs on metal, preparing a wooden product for treatment with paints and varnishes, etc.

It is used both manually and on a machine (other grinding device), for simple and complex configurations (edges and joints of parts).

Externally, Hammer 213-016 is similar to a standard grinding wheel, but there is an important nuance: the sandpaper is arranged in petals along the diameter.

The petal circle “sits” tightly in the cartridge.

The sandpaper is attached with resin. The package is sold in 2 pieces (main and spare). The depth of the recess can be varied.

Specifications:

• grit (P): 40;
• landing diameter: 22 mm;
• diameter: 125 mm.

Advantages

• high quality abrasive processing of parts;
• petals are used evenly;
• decent level of grain;
• compact;
• cheap.

Flaws

• you need to use safety glasses while working;
• it is necessary to choose the right type of device;
• Some brushes spark during operation.

Recommendations for replacement and operation

Wire brushes on an angle grinder wear out sooner or later . You can replace worn ones with new ones, like any other tool used in the operation of a universal grinder. To do this, the brushes have a base washer with a hole for the threaded rod of the grinder. It is necessary to combine the base washer of the equipment with a similar one on the brush and tighten it by hand using a threaded washer that has holes for a special key.

NovoTools ring brush, corrugated brass, 150x22.2 mm. Photo by EWeld

The direction of the thread on the washer is designed in such a way that during operation it will tend to tighten more strongly. The grinder comes complete with a key with pins for the holes , with which the tension is released when removing the worn brush. Some types of brushes can be made complete with a threaded part on a nut for an ordinary wrench.

The technology for processing workpieces with brushes has some features. The force of pressing the nozzle onto the workpiece should not be very strong. Such actions will lead to the formation of severe roughness and deep scratches. To prevent such defects, the technology involves wetting the surfaces to be treated with special compounds (possibly using a soap solution).

Working with an angle grinder with a wire brush attachment requires compliance with safety rules . During operation, as the brushes wear out, pieces of wire can fly out of the processing area at high speed. You should use protective equipment to prevent such metal particles from coming into contact with your body. First of all, it is necessary to protect your eyes with professional glasses that reliably protect your visual organs. Gloves will protect your hands from getting on your hands; it is advisable to have work clothes on the rest of your body. The mandatory presence of a protective casing was discussed in the article earlier.

TOP 4 best grinding abrasive discs

The best grinding abrasive discs.

Sanding abrasive disc 3M 51748

A fundamentally new model of a grinding wheel is a new class of abrasives for angle grinders.

High-quality assembled model: unrivaled in working with stainless metals and welds, for chamfering and removing scale, preparing structures for welding and reinforcing welds, and much more.

The abrasive of the grinding disc is made of aluminum oxide. Installation type: flange, convex shape, dry grinding available.

There are no vibrations even during long-term operation, and there is no overheating of the part. The production resource is large.

Specifications:

• dimensions: 125 mm in diameter;
• bore diameter: 22.23 mm;
• thickness: 7 mm;
• grit: 36 P.

Advantages

• economical model;
• handles weld seams well;
• perfect grain shape;
• comfort at work.

Flaws

• no replacement included;
• price;
• not a frequent visitor to stores.

Grinding abrasive disc PRACTICA 773-590

If you need an abrasive disc that is inexpensive and works as efficiently as possible, you need the PRACTICA 773-590 disc.

The circle shape is cup-shaped, suitable for angle grinders.

It copes well with grinding both soft (animal horns and hooves, hard and soft wood, cork, rubber, fiberglass) and hard (stone, brick, concrete) materials.

The grain on the wheel is large and sits firmly (in cases where the use of abrasive consumables is impossible, it is ideal).

Works with angle grinders at high speeds. 1 piece included. Country of origin: China.

Specifications:

• diameter: 125 mm;
• landing diameter: 22 mm;
• grit (P): 8.

Advantages

• does not dull even on hard surfaces;
• carbide cup;
• small;
• well mounted;
• many processing materials are available.

Flaws

• few grains;
• strong vibrations;
• price.

Grinding abrasive disc AnroKey AAR-DZ125S

Manufacturer AnroKey presents to your attention the AAR-DZ125S abrasive grinding disc - a disc that performs its task 100 percent.

The working surface consists of grains of a certain fraction cemented together with a binder.

Used for removing the top layer from surfaces, cleaning welding seams, stripping cast workpieces, removing rust and scale, as well as other contaminants.

Copes not only with perfectly flat, but also curved surfaces, helps form grooves in soft alloys, concrete and non-ferrous metals.

Acceptable materials: wood, plastic, stone, metal. The working surface must be lubricated to maintain functionality for a long time.

Specifications:

• diameter: 125 mm;
• bore diameter: 22.2 mm;
• grain: silicon carbide.

Advantages

• polishes;
• always easy to find on sale;
• suitable for grinding metalwork and carpentry tools;
• high level of heat resistance;
• holds its original shape well.

Flaws

• overpriced;
• on corrugated metal it quickly fails;
• wears out quickly;
• not suitable for wood.

Grinding abrasive disc AlphaDisk rounded 770-106

The ideal grinding rounded abrasive disc for high-quality grinding.

The body material is made of steel, the abrasive is made of pobedite, namely tungsten carbide (this chemical compound is very strong and wear-resistant).

The grains are firmly soldered to the disk body.

Approved for working with the following materials: animal hooves and bones, rubber, artificial stone, composite, foam concrete, brick, gas silicate blocks, wood.

By correctly selecting the disk rotation speed, you will polish the surface you need with the highest quality possible.

The device allows you to work with one hand, without using a vice. Installation - on a flange. Grain size - 0.5 millimeters. Assembled in Russia.

Specifications:

• weight: 0.24 kg;
• length: 210 mm;
• width: 150 mm;
• height: 30 mm;
• diameter: 125 mm;
• bore diameter: 22.2 mm.

Advantages

• there is no need to frequently change the grinding disc;
• tungsten carbide is chemically inert and not dangerous to humans;
• no grinding dust remains;
• high-quality rough cleaning;
• serves for a long time.

Flaws

• not suitable for stone processing;
• metal does not lend itself to it;
• the price tag is above average.

Subtleties of choosing a brush for an angle grinder

To choose and buy the right brush for an angle grinder, we focus primarily on the complexity of the upcoming processing and the dimensions of the device itself. On compact angle grinders, it is not recommended to use attachments designed for professional models, as this may cause damage. It is important to take into account
the number of revolutions of the tool ; equipment is selected taking into account this characteristic.
Inconsistency in indicators can also cause various problems. After the choice regarding the size and type of equipment has been made, the craftsmen recommend paying attention to the quality of the nozzle. The pile of a wire iron brush for an angle grinder should be evenly distributed. Different particle sizes can lead to poor performance and unnecessary vibrations. The latter factor is often the main cause of hand fatigue.

A brush for an angle grinder with a small diameter, as a rule, does not produce strong vibrations. Equipment with synthetic bristles is considered the lightest type of attachments, and therefore vibrations with it are minimal. Craftsmen often recommend buying an angle grinder brush with polymer bristles for texturing wood.

If you have no experience working with accessories for angle grinders, professionals recommend purchasing several different models at once. This will help you find out in practice which brush is effective for a particular type of work. Experts advise paying attention to the popular ones, “HAMMER”, “GRANITE”, “Biber”.

Installing or replacing an angle grinder brush is as easy as a cutting wheel. The equipment is secured with a nut and secured with a standard open-end wrench with pins. Some cone and cup attachments come with a nut included. Fixing such equipment is easier: you just need to screw it onto the pin.

Since the grinder brush does not apply high pressure to the workpiece being processed, grooves may occur. In this case, this is a sign of an error in the selected polishing technology.

It is important to note that work should only be carried out with a protective cover for the safety of the operator. During the processing process, it is imperative to protect your face from particles of wire fluff, shavings or flying fragments of the old paintwork. For this, special glasses or masks are used. This is especially important if the equipment rotates at high speed. Because in this case the particles can fly apart in different directions. It is also important to take care to protect your hands from sparks and chips to avoid minor injuries. Replacement of equipment is carried out only after disconnecting the angle grinder from the electrical network.

Basics of brushing technology

The task of brushing is to artificially create surface stresses that will promote the separation of layers that have different physical and chemical characteristics. In old manuals you can still find instructions on the process of mechanical cleaning of continuous rolled metal, in which a rod or wire was directed between rollers offset relative to each other. The cleaning process occurred, firstly, due to systematically occurring kinks in the workpiece, and, secondly, due to the pulling of metal between two disk brushes, which rotated in the opposite direction. During this rotation, dirt and dust adhering to the surface were removed.

The final macrorelief of the surface of workpieces cleaned by etching and brushing is approximately the same.

The possibilities for effective use of brushing in production conditions are limited to thin sheet metal or wire with a diameter of up to 8 mm. However, the process has found application in everyday life thanks to the widespread use of universal grinding machines (angle grinders) and the availability of specially designed brushes for them.

Types of products

Various types of brushes for electric motors are manufactured for use in industry and everyday life:

• graphite - made from graphite with fillers, such as carbon black, provide easy switching in engines;
• carbon-graphite - they are not very strong, so they are used in devices with minimal mechanical load;
• electrographite – characterized by high strength, guaranteeing medium-level contact with increased current loads;
• copper-graphite with copper, tin or graphite powder and fillers. Distinctive properties are increased strength, protection from penetration of gases and liquids, and work with complex contacts.

How to use it correctly

The attachment is not difficult to use. It installs quickly. The main thing is to check the degree of fixation of the locknut and the integrity of the equipment. If there is a concave pile, it is leveled. After work, it is necessary to clean the bristles from dirt and rust.

Test of grinding attachments for angle grinders (stripping/flap/end twisted wire). PART 1

The quality of work performed by a metal brush depends on how correctly the number of revolutions is set.

It is easier to cope with the processing of metal and other surfaces if you take into account the recommendations for choosing a brush.

How to choose a working mode

When setting up the tool, you need to choose the right operating mode. After a test run of the equipment on the working surface, the following actions are performed.

If the hangnails fall off, it is recommended:

• set high speed;
• replace the brush with another model with shorter or wider bristles;
• use a nozzle with a larger diameter bristle.

The pressure force is adjusted as follows:

• increase in speed;
• installation of equipment with a pile of larger diameter.

If the effect is insufficient, you should adjust the speed higher and/or use a nozzle with a short wire. You can also try a brush with larger bristles. If the effect is excessive, the speed is reduced, and nozzles are used with thin long wire.

Rust remover

Another option for a grinding disc. The nozzle carefully cleans the surface being treated from paint, rust, and difficult-to-wash-off contaminants. Works with equal effectiveness on metal, wood, stone, and plastic surfaces. Installed on a grinder, standard 100 mm, 115 mm and 125 mm.

The attachment is easy to install and remove. Made from high-quality materials, it is therefore characterized by high wear resistance. Designed to perform large volumes of work under intensive use.

The outer diameter of the disk is 100 mm. The internal diameter is 16 mm, therefore, for installation on some “turbine” models, the insertion of an additional ring may be required.