Previously there were no electronic tools for polishing rough surfaces. It was also quite annoying to do the work by hand because it took time, but now we have an angle grinder to help us. Times have changed and we are well equipped with the right machines, the so-called grinding machines, which can help us to do similar work.
With the invention of the angle grinder, household work like grinding, buffing, polishing, cutting, sharpening, and cleaning metals with this tool becomes extremely easy. With the passage of time, the scientist has created variation in angle grinder technology and they have added variable speed feature. Nowadays, variable speed angle grinders become very much popular among household power tools users. That’s why all the top-notch angle grinder manufacturers are producing different models and design variable speed angle grinders.
Since there are many options, choosing a good quality variable speed angle grinder isn’t easy. When choosing an angle grinder, the user must take into account a number of factors.
After doing countless hours of research, we have chosen the best variable speed angle grinders for DIYers. Hope you can choose the perfect one and enrich your home DIY toolbox!
Quick Look At Top 10 Variable Speed Angle Grinder
Review of Best Variable Speed Angle Grinders Of This Year
Number #1: Makita 9565CV Powerful Angle Grinder
Makita is a world-class manufacturer of heavy-duty and household power tools. The headquarter of this leading brand is located in La Mirada, California. The Makita 9565CV is designed for maximum comfort with a portable design that weighs less than 4 pounds. It is constructed in such a way that no matter how long you use it, it will always serve you like new. It has a locking switch that makes this grinder easy to use.
Makita 9565CV has a powerful motor of 13 AMP. This motor is dedicated to delivering good power output maintaining awesome speed. Furthermore, the addition of “Soft Start” restrain the reaction during the start of the grinder. The suppression work done by the Soft Start feature also ensures smoother initial launching and also protects the gear of initial torque produce by the grinder machine.
If there is an accidental overheating due to electrical fault or overloading, the electric limiter of the grinder will protect the grinder from damage by stopping the motor. Furthermore, the Super Joint Dynamic System, exclusively developed by Makita, prevents damage to the gears as a result of accidental wheel binding.
The labyrinthine design of this variable-speed angle grinder provides sufficient protection against dust and dirt. The thick wiring gives the Makita 9565 a high degree of strength, making it one of the most versatile tools on the market. A high degree of protection is provided by zigzag varnish which helps the user to protect the engine by closing the inlets.
Masonry’s work becomes quite simple in combination with the variable speed function. So you can use this angle grinder for both grinding and polishing, which can also be sufficient as a solvent for high-speed paint. Makita 9565CV has a five-stage variable speed dial which is given to change the speed of the grinder. Shifting the motor speed from 2800 to 10,500 rpm can be done quickly by adjusting the variable speed dial.
The max speed setting (10,500 RPM) allows you to adapt to do more demanding tasks. This angle grinder can easily maintain its speed, even when you are working with it.
- Super Joint System (SJS) technology is the main highlighting feature of the Makita angle grinder. This mechanical clutch system assists the grinder to protect and prevent gear damage.
- The 13 AMP motor ensures the maximum power output maintaining greater efficiency.
- Specially made labyrinth construction, zig-zag varnish inside the motor, and thicker coil wires guarantee a long lifetime and better durability.
- The electronic speed control system always helps the grinder to keep speed constant, even under heavy loads.
- The Softstart function ensures a soft start.
- It has five variable speed dials. And the range of motor speed is between 2800 RPM to 10,500 RPM.
This professional angle grinder offers first-class technology at a user-friendly price, which is rarely found in the products of other manufacturers.
Bosch has implemented an upgraded version of carbon brushes in this angle grinder model. This upgradation of carbon brush ensure maximum service life.
The housing is specially designed such a way that it direct the airflow of the motor to divert dust and dirt coming inside important inner components of the grinder.
The robust spindle lock and the tool-free adjustment of the protective cover increase comfort and safety.
The ambitious ergonomic side handle remains vibration-free even when working long hours on granite worktops.
The Bosch toothed grinder, which operates with a 13 A motor, can run at 11500 rpm without load.
This machine is ideal for polishing and slow grinding since it has a variable speed feature. It has combined a speed controlling switch. With the support of this switch, you can set the motor speed at the lower limit of 2500 RPM and the upper speed of 11500 RPM.
Weighing only 5.3 lbs. Without any doubt, this universal angle grinder has the best power-to-weight ratio among our top picked angle grinder.
- Carbon brushes are more durable than their counterparts.
- A higher overload capacity is achieved by direct motor cooling.
- The speed can be easily adapted to the specific application by adjusting the speed.
- Numerous convenient gripping positions are guaranteed by the flag switch.
- Equipped with a paddle switch with multiple handles to switch from one position to the other.
- The space between the handle and the protective cap is very narrow.
- The diameter of the drum handle can be extremely large for people with small hands.
The Makita 9564CV is strong enough in terms of power, performance, and safety to please users with excellent torque in all five-speed modes.
In combination with the variable speed settings, you can easily adjust the speed and torque level to suit your needs.
So this versatile machine can help you tackle unevenness in the welding work in combination with low speed and high torque.
In addition, the high speed and low torque settings can be adjusted.
The speed level is maintained by the electronic cruise control even when operating under load.
Makita’s SJS brand technology provides adequate protection against gearbox and engine wear.
The zigzag coating for fittings and labyrinth constructions also insulates gears and windings from dust accumulation.
Greater durability is achieved by the thicker wires used by the luminaire coils for trouble-free operation.
The slide switch on the top of Makita’s 9564HP makes it one of the safest angle grinders on the market and helps you to keep the switch in the right position for a long time.
In addition, you can easily change the position of the protective grille thanks to the tool-free wheel guard.
So you never have to compromise your safety by removing the protective cover.
You can even attach a side handle on the right or left side as desired.
- The labyrinth design protects the motor and its bearings against the accumulation of dust and deposits to extend the life of the motor.
- Soft start is guaranteed by the soft-start function.
- The slide switch and the locking setting allow for long-term use.
- The increased output power is provided by a powerful 12.0 AMP motor.
- Weighing in at just 5.3 pounds, this compact unit is a high priority in the portability department.
- The carrier bag must be purchased separately.
In combination with an input power of 1550 W and a 5-inch grinding wheel, the Metabo angle grinder can inspire you with its star-shaped performance while meeting your safety requirements.
Metabo carbon brushes with automatic shut-off help protect the motor, while the S-automatic with mechanical shut-off minimizes kickback, even if the driver stops suddenly.
In addition, the coupling ensures the rapid progress of the work and the safety of the user.
The torsion-free and tool-free adjustable protection can also keep your back free while working.
The soft-start protection, electronic overload protection and reset protection of Metabo speed-controlled angle grinders help prevent short circuits.
You can easily change the speed level in combination with the variable speed option and the higher overload capacity.
The full-wave Vario-Tacho-Constamatic electronics that control this professional tool from Metabo adjust the speed when working with different materials.
The speed remains constant, even under heavy load. The speed of the tool meets the requirements of the application in combination with the electronic speed.
This way you can easily apply this mill on marble and even on stones.
The durable engine of the green and red Metabo mill paves the way for longer life and faster material removal, combined with a 20% higher overload capacity and 50% higher torque.
You can also install the gear housing by rotating it in steps of 90 degrees so that you can cut more easily with your left hand.
- It is equipped with electronic overload protection to protect the device from overheating.
- Soft start is made possible by electronic starting, which improves controllability and extends the life of the engine.
- In combination with an electronic dial with adjustable speed, it is easy to select the speed of the instrument according to the requirements of the application.
- The MetaboLongLife engine delivers 50% more torque than comparable engines.
- It makes a lot of noise and therefore reduces concentration at work.
Hitachi’s highly efficient angle grinder is specifically designed to work with maximum stability, even with unstable generator output.
The input power is controlled by the inverter circuit, preventing damage to the stability of the inverter.
Combined with the compact housing and low profile of the Hitachi G12VE gearbox, it’s easy to reach any angle.
The smaller diameter of the handle allows the user to exercise more control with less energy, even during prolonged use.
Uniform operation is guaranteed by a tractor lock, which also allows quick and easy replacement of the accessories.
This grinder can be used for large and complex work such as removing rust and paint, masonry, grinding metals, grinding various surfaces, surface treatment, grinding stones, but also for application work with wire grinding tools or wire trays.
The unique design of this tool increases cooling efficiency and extends the life of the engine.
Users can also change speed settings between 2800 and 10000 rpm depending on their individual preferences.
The internal circuitry of the inverter helps the angle grinder operate safely on generator power to compensate for voltage fluctuations.
- The irregular power supply is regulated by the inverter’s internal circuit, which provides excellent performance.
- Heavy crushing tasks can be solved with an input power of 1300 watts.
- Control is improved and fatigue is significantly reduced thanks to the extremely thin grip circle.
- You can easily determine the optimum speed for your application in combination with the adjustable speed.
- It allows the use of extra-long extensions without loss of strength.
- The suitcase is purchased separately.
Dewalt is a fairly restored name in the field of tools, and it produces the best angle grinders that are quite famous.
In the case of the DWE402, it is a first-class grinder that offers excellent overload protection. The main reason why this mill is the best in this collection is its powerful engine. The engine is also designed to reduce durability problems.
This model has oversized brushes that last about twice as long as other Dewalt models. The huge bevel gearing increases the service life of the unit.
Double clamps help customers use common accessories such as single key protection, side handles, and more.
The motor of this model is very powerful because it works with 11 amps AC/DC. This allows the grinding wheel to be machined at a speed of approximately 11,000 rpm. This guarantees good weight, performance, and size.
The best thing about the Dewalt Paddle Switch is that professionals can easily change wheels without the use of first-class equipment and tools.
Moreover, this model is very easy to use thanks to the smaller gripping surface. People can use the device without getting tired because it prevents hand fatigue during prolonged use.
The DeWalt angle grinder with paddle switch has a safety lock. This system eliminates the risk of unintentional starting, so you are protected against injuries and accidents.
The grinder is also equipped with a spindle lock button for easy tightening and loosening of the key. This means that you do not need to use two buttons when changing wheels or discs.
This angle grinder also keeps your workplace clean, because this model has a dust emission function. The dust ejection system increases the durability and service life of the grinder, as it ejects the ground material and prevents the material from entering the internal mechanism.
This angle grinder has a protective cap that rotates 360 degrees in one go. This protective cover increases the life of the grinder at the touch of a button.
This model was awarded a total of 4.8 stars in the Amazon. Overall, these great features and positive feedback make this angle grinder the best choice for your purchase.
In addition, a button, touch screen, and a side handle with two positions are included. An angle grinder with one set and 5 grinding discs is available at extra cost.
If you are looking for the best product for cutting, rust removal, grinding, and grinding, the BDEG400 from Black & Decker is a perfect choice. The metal housing of the pinion of this crushing machine ensures the long life and durability of the machine.
This product is also equipped with a 3-position side to handle for extra comfort. This function also allows you to work with the machine from different angles.
The Black & Decker BDEG400 is also equipped with a pin lock for easy replacement of accessories.
The machine is equipped with a metal housing that protects it from factors that can cause external damage. The sharpener is relatively more durable than any other power tool available on the market in the same price range.
The Black & Decker BDEG400 is a comfortable model and the side handle is mounted on three sides. Any craftsman would not suffer from fatigue, even if he used a grinder for a long period of time.
The unique design facilitates the work of the craftsmen. The slim shape of the shredder also makes it easy to use. Thanks to the shape of the machine, which offers a comfortable and firm grip, you are ready to work with ease.
The machine can be switched off more easily by pressing the release button on the shredder.
The Black & Decker BDEG400 is also equipped with a pin lock for easy accessory exchange. The lock not only gives the machine a touch of class but also makes it easier to use. All you have to do is press the button.
Angle grinders that do not have this function are very difficult to repair.
In addition, the exceptional design of the shredder distinguishes itself from all other machines on the market.
Customers are very satisfied with the performance of the product and they appreciate the fact that this machine is super affordable and they don’t have to save a lot of money.
There are better options on the market that can compete with the Hitachi G12SR4. Compared to other angle grinders, this Hitachi angle grinder has amazing performance. These properties make sanding much easier for professionals.
This model is equipped with a powerful 6.2 amp engine, which generates enough power to handle difficult materials.
A 4.5-inch angle grinder makes it possible to adjust the machine easily and accurately. You also get 5 extra grinding wheels. These extra wheels make it possible to come to an agreement.
The left-wing parties look at some characteristics of this model.
The best thing about this product is that you can use it for different applications. For example, you can use it to remove paint and rust from all devices. It can even be a lawnmower that is always in your garage.
With this machine, you can not only grind different surfaces, but also masonry and metal.
The design of this model ensures the efficiency of the large intestine. Even if you use an angle grinder for a long time, it will heat up less.
Overall, this machine is durable and if you invest in this product, you get a machine that is worthwhile.
This angle grinder is a compact machine. These compact dimensions make the machine easy to use, even when space is limited. You can easily work on small projects such as removing rust from your existing devices.
Even for you, this car is heavy but super compact and light. Due to its design, the angle grinder can be easily transported and maneuvered at any angle and in any direction.
The machine weighs about 1.5 kg and has a high power-to-weight ratio. This gives the user full control over the angle grinder and allows him to use it for different purposes.
One of the biggest problems that craftsmen face when working with angle grinders and other related equipment is that they end up suffering from fatigue and tension in their hands. This load becomes noticeable when the machine is used for a longer period of time.
This is not the case with the Hitachi G12SR4. The handle diameter of angle grinders is quite small. This small-diameter ensures total control during the operation of the machine and does not cause excessive fatigue.
This way you can complete any project you decide to do. Moreover, this project will be carried out with all the difficulties and inconveniences.
This angle grinder also has an exceptional spindle appearance. With this lock, the user can easily change accessories. This allows you to make optimal use of the machine and deploy it in multiple projects.
By attaching the shutter button, you can use this camera for a longer period of time. In addition, the removable hood, which can be attached to the angle grinder, ensures your safety.
If the angle grinder is overloaded, the machine switches off automatically.
This model received a total of 4.2 out of 5 stars on the Amazon. This is the main indicator that customers are super satisfied with their purchase and appreciate the features of this model.
When purchasing a perfect angle grinder, it is important to consider the task you are going to perform. In general, people have different preferences for angle grinders, but if you are looking for a better product, the Makita GA4530 is for you.
MAKITA is a name that enjoys a good reputation, and the products it produces are durable and made from the highest quality materials.
This particular model is designed to work just like the others. Below are some striking features of the Makita GA4530.
Like the angle grinders mentioned above, this device is also very easy to use. The comfortable design allows you to work with the product for a long time without feeling tired.
The large knife switch supplied with this machine makes the angle grinder easy to use. It provides a secure grip that allows master craftsmen to work comfortably with the machine on rigid materials.
We know it’s pretty dangerous to work with power tools. Currently, large companies are developing tools, giving priority to safety standards. Makita complies with these standards and all its products are designed to reduce the risk of accidents and injuries.
In addition, a zigzag protective lacquer protects the equipment against dirt and deposits. This protective coating extends the life of the machine and keeps it for many years.
When buying angle grinders, craftsmen prefer machines with stronger and more compact construction. In the case of the Makita GA4530 it weighs only 4.5 pounds.
This Makita angle grinder has an alternative power source. This allows you to use this technology and an alternative power supply if you are working in an area where there is no power supply.
This function is very useful for those who want to change the power of the alternating and direct current. With this model, you can do it with a simple push-button switch.
The labyrinth construction of the angle grinder seals protects the bearings and the motor from damage.
This model also has a rotating pinion body. It can be rotated 90 degrees, this feature provides excellent cutting performance and allows the shredder to be easily used on a wide range of materials.
With an average rating of 4.7 out of 5 stars on Amazon and super positive reviews, it can be said that this product is appreciated by many. One customer noticed that this model is ideal for lighting projects and produces amazing results.
They are also fans of the high-quality grinding wheels that help the grinder do its job.
Why Do You Need a Variable Speed Angle Grinder?
If you want to buy a grinder, you probably already have a project in mind. Whether you want to focus on one particular material, or on a wide variety of materials to be cut, sanded, polished, or cleaned, we can help you. The choice of the right grinder is partly based on your needs and the preferred materials. Here are recommendations of the best grinder models according to the material to be worked on.
I Want to Cut Steel
With a grinding machine, it is possible to cut/saw thin layers of steel. Depending on the cutting depth, a 125 or 230 mm grinder should be chosen.
For a 125mm grinder, a 125mm diameter cut-off wheel with a thickness that can vary from 1 to 1.6mm is used.
For a 230mm grinder, a 230mm diameter cut-off wheel with a thickness of up to 2mm is used.
The thickness of the disc is chosen according to the desired result. The thinner the disc, the sharper and more precise the cut, but the disc is brittle, so inclined cuts are avoided. A thicker disc is used for coarse work.
Caution: Be sure to wear protective glasses because the contact of the disc with the metal generates sparks. It is also advisable to have no flammable products around the work area. In general, the usual precautions are written on the disc or its packaging.
I need to Grind Steel
Is your job to grind steel and clean a metal surface (e.g. after welding)? Then you need a grinding machine with high power. It will guarantee safe movements, real resistance to the material, all for greater precision.
Choose between a grinder, an angle grinder, or a straight grinder. It is recommended to fix the workpiece to be ground firmly with a vice or a clamp. Then use the right abrasive for easy work. Aluminum oxide for high-strength steel and silicon carbide for low-strength steel.
I need to Cut Concrete
When cutting concrete, it is absolutely necessary to use a diamond blade. A diamond disc costs more to buy but wears out less quickly.
Depending on the cutting depth, you should choose a 125 or 230mm grinder on which a 125 or 230mm diameter disc is fitted.
It is possible to use discs with segmented edges. The work will be faster but the result will be less fine… These discs are mainly used in masonry.
Caution: a diamond disc does not sharpen but it is possible to clean it by cutting chipboard. This allows you to maintain its full efficiency.
I have to Grind Concrete
If you want to grind concrete, you need a grinder powerful enough to handle this hard and tough material. Ideally, the work should be carried out on both vertical and horizontal surfaces, so you have a lot of freedom of movement. An angle grinder is recommended for its versatility, to be embellished with a segmented diamond disc.
Depending on the disc, you can change the appearance of the concrete surface, clean or dig. Diamond and segmented discs are designed to cut marble or concrete thanks to their good resistance.
I Want to Cut Tiles
To cut tiles, you need a grinder that can hold different discs. Indeed, if you plan to work with tiles, the right disc to hold will not be the same depending on the thickness of the tiles and their hardness. This is why it is important to have a grinder capable of holding a wide variety of discs.
A smooth or continuous segment diamond disc is recommended for cutting tile to ensure a clean, burr-free cut. You can also choose diamonds and bakelite discs. Remember to choose a grinder with large diameter discs (230 mm) if you are cutting large tiles.
I need to Grind Glass
A straight grinder with a grindstone is recommended for grinding glass. Be careful, grinding glass is not the same as “cutting” glass. Here, with a grinder, the aim is to reduce the size of the glass, change its appearance, or to polish sharp edges.
If you venture to cut glass with a grinder, you will create splinters, break the surface, and hurt yourself. Choose a very fine grain and soak in water regularly for precise work.
What energy will your grinder feed on?
To differentiate the grinders, and choose the right model according to your need, it is necessary to be interested in the mounting of the discs and the variety of accessories. It is also the energy of the grinder which is to be monitored and its power. Depending on the energy that powers your grinder, you will not have the same rendering. And in terms of power, ditto: the more powerful it is, the less a grinder will need to turn fast and hard to perform its action.
Best Variable Speed Angle Grinders Comparison Table
Type Of Angle Grinder
Electric grinders are the most common. However, if the majority of machines use this energy, you have to look at the power level. Expressed in watts (W), it varies depending on the work you want to do. You will find models with a variable power range.
Grinders with low power (150 to 400 W) are to be reserved for small jobs, and for occasional use (these are generally mini-grinders).
For sanding, choose a grinder with a power between 600 W and 1000 W. Beyond, and up to 2000 W and more, we find the grinders for the most demanding works, and in particular the structural work.
An electric grinder can be wired or battery operated. In this case, we speak of a cordless grinder. Wireless models are very practical on construction sites and allow more working comfort. Better, without wire, you have the possibility of working on a site that does not have electricity.
Beware however of some limits. Cordless, a grinder cannot offer you maximum power, and autonomy is, logically, limited. You will only find models of grinders 115 and 125mm in “cordless”.
The pneumatic grinder is very popular with some professionals. It is the favorite grinder model for welders and metalworkers. Why? Because of the compressed air system and the air compressor provide a lot of power. Better still, stopping and starting is done instantly.
A top grinder for construction sites, which also resists humidity and has a low weight. The ideal grinder? The pneumatic system brings some limits: it is indeed necessary to compose with the pipe which connects the whole to the compressor, which reduces the handling.
Price of a Grinder: What Budget for What Use?
What is the price of a grinder? What budget to spend on the purchase of a grinder? Depending on the technology, the price of a grinder will not be the same:
- Angle grinders are available for 20 or 30 $. The most complete models, the most powerful, and which will offer true versatility will ask you for a larger budget. You can find very complete models for 150 to 200 $, with the top range going to 400 $ or more.
- The most accessible straight grinders are offered at a price of 90 to 100 $. You can have a brand model for this price, with a power of 400 W. For 250 to 300 $, more powerful machines are available (650 to 900 W).
- For a mini-grinder, prices range from 30 to 200 $. A more limited price range, which is explained by the more limited performance of these grinders.
The three main functions of an angle grinder are grinding, grinding, and cutting.
When cutting, the angle grinder operates at a very high speed, this speed makes cutting easier and ensures greater precision.
With a suitable nozzle set, any scratched metal can be repaired and polished. What do you think about buying a angle grinder? So it’s important that you look at all the ways it can help you.
These versatile devices have many applications.
In body shops, you will most likely find an angle grinder because it is used to remove paint. The angle grinder removes old paint without damaging the underlying metal.
The angle grinder can also remove rust. To remove a layer of rust you will need a brush or a metal wheel. Once the rust has been removed, the surface must also be prepared for a new coat of paint.
This allows you to store the metal under the grid.
The angle grinder is ideal for cutting ceramic tiles and other items. You cut the edge clean and tidy.
With the angle grinder, the mortar can be removed easier and faster. This tool also reduces the risk of bricks shredding each other when the mortar is being cleaned.
As we already know, the angle grinder is able to make smooth and beautiful cuts, making it ideal for cutting stone. If you need extra mobility, you should opt for a smaller grinder because its compact dimensions help you to cut small and precise workpieces.
Just like you can clean metal with an angle grinder and de-rust trolleys. A wire brush is a suitable tool here because it can easily clean your metal tools and shovels.
In addition to cleaning the metal, you can also cut it with an angle grinder. The advantage is that angle grinders are compatible with all types of metals. The use of an angle grinder allows the metal to be cut, making it naturally good for cutting metal.
The ideal alternative to a bench grinder for grinding tools is the angle grinder. However, you do need some knowledge of tool management and checking the proper functioning of the equipment.
You can cut out a wooden object with the wire rings. As angle grinders, they are ideal for wet forming, e.g. for the production of tables or table legs. Don’t forget that angle grinders aren’t good enough for hard work, so you need something else for that.
Finally, you can machine the wood with the wire wheel. The threaded wheel can also be used for other planning tasks.
You can easily cut thicker metals in combination with higher performance. If you plan to use the same mill for a long period of time, you should choose a mill with a larger capacity.
2. Brushless crushers
These motors have fewer parts that can wear out. This makes them more powerful and definitely worth adding.
In combination with variable speed angle grinders, it becomes easier to carry out delicate work at lower speeds, which can increase the price of the machine.
The slow start function can be observed on some angle grinders where the engine slowly reaches its maximum speed to prevent it from twisting when starting. The buffer restart protection prevents the mill from restarting if it overheats or is left unattended. The paddle switch is also present in some grinders and is called a deadman’s switch. This safety mechanism ensures that the user can easily hold the grinder and stop turning it when the switch is released. The anti-return function ensures that the angle grinder cuts through all edges when nested. Although these features increase the price of angle grinders, they can greatly improve your safety and are therefore considered mandatory on several construction sites.
This can be an important choice when setting an angle grinder to zero because the cutting depth of your machine is positively correlated with the diameter of the grinding wheel. Angle grinders with a larger disc diameter also give it more power.
Other accessories include angle grinders with lock nut, grinding wheel, and lateral angle. Some even have cases and grinding wheels, which are included in the price. Although it is more expensive than the basic model, it will all seem much cheaper than buying each item separately.
A good sharpener will help you sharpen various other tools and cutters.
In addition to the rhetorical cutting aid, the right variable speed angle grinder can also increase the cutting speed of rods, PVC, pipes, and cables.
You can see more amazing reviews of Right HERE.