10 Best Variable Speed Angle Grinder – Reviews in 2021

Best Variable Speed Angle Grinder

Angle grinder tools offer numerous applications, including polishing, cutting, and grinding. You can use several handy accessories to accomplish these projects, but the most important part is having the best variable speed angle grinder.

Variable speed grinder tools provide you with more control when it comes to your angle grinding projects.

Look for a tool that gives you multiple speed settings. You should be able to choose the correct speed to match the applications you need the most with the angle grinder.

If the angle grinder is not durable and powerful, then a variety of speed options will do the user no good when it comes time to use it.

Quick Comparison: Best Variable Speed Angle Grinders

Top 10 Best Variable Speed Angle Grinder Reviews:

1. Makita 9565CV 5″ Variable Speed Angle Grinder

Makita 9565CV 5

The Makita 9565CV 5″ SJS variable speed angle grinder is a worthwhile tool to have in your possession for a variety of grinding and polishing tasks. This variable speed angle grinder comes equipped with special features that make your work easier to manage.

It has a powerful 13 AMP motor and can be set to speeds ranging from 2,800 to 10,500 RPM. The speed control dial can be set by the user to match the specific speed needed for an application.

This adjustable speed angle grinder is outfitted with the latest SJS technology. This technology is a mechanical clutch system that combats damage to the gears and motor.

If the wheel stops unexpectedly, the drive shaft will slip automatically. Labyrinthine construction and zig-zag varnish also keep this tool going for longer with minimal maintenance.

Multiple aspects of this variable speed grinder polisher are focused on comfort and control. There is a lock-on switch that makes operation simpler and safer.

A side handle can be placed on either the left or right side. And the wheel guard does not require any tools to adjust the direction.

 Pros:

 Cons:

  • Mechanical clutch system prevents motor and gear damage

  • Soft start allows for smoother start up

  • Electronic limiter reduces accidental motor overload and burnout

  • Tool-less wheel guard adjustment

  • Lock-on switch for easy operation

  • Zig-zag varnish seals the motor and bearings

  • On/off switch could be more user-friendly

  • A bit heavy for long-term use

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2. Bosch 5 In. Variable-Speed Angle Grinder

Bosch 5 In. Variable-Speed Angle Grinder

If you need a variable speed angle grinder, then the Bosch 5 In. Variable-Speed Angle Grinder (GWS13-50VSP-DG) works well for a range of applications.

It can sustain an incredible amount of power with its 13 AMP motor. This angle grinder may be set up to 11,500 RPM. It can maintain these high speeds due to direct-motor cooling.

You will be able to control this tool without trouble, thanks to a durable dust guard footplate. This footplate increases the stability of the entire angle grinder and allows a user to make cleaner, more accurate cuts. Depth adjustments can be made with a single-screw alteration.

Vibration control on the two-position side handle also adds more stability and comfort. A paddle switch lets you try out several different grip positions, too.

Multiple features of this tool make it more durable for long-term use. This angle grinder uses carbon brushes that are much more reliable than other versions.

The Service Minder system lets you know as soon as the brushes need to be replaced or serviced. The dust guard also prevents damage to the tool and motor, plus keeps the operator safe from flying debris.

 Pros:

 Cons:

  • Direct-motor cooling allows higher overload capacity

  • Has durable carbon brushes

  • Vibration control on side handle

  • Comes with a large, durable dust guard footplate

  • Paddle switch provides multiple grip positions

  • Equipped with restart protection

  • Must use screw to adjust depth

  • Must be near plugin to use

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3. Metabo 600 Rpm 5″ Variable Speed Torque Angle Grinder

Metabo 600 Rpm 5

The Metabo – 5″ Variable Speed Angle Grinder (600562420 15-125 HT) is a high-quality tool made in Germany with world-class engineering. This variable speed angle grinder is created using manual, hybrid, and fully automated assembly systems.

You can process stones and other materials quicker and more efficiently with this robust angle grinder. The motor is outfitted with a patented dust guard and has a 20% higher overload capacity than similar tools.

You can change the controls of this angle grinder with variable speed with ease. The wheel guard is adjustable without tools and is also twist-proof. And the gear housing can be turned in 90-degree moves to give the user room for left-handed operation.

A thumbwheel makes customizing your work speed as simple as flicking a dial. The speed on this grinder will remain fairly constant even when under load.

Safety features keep this variable speed control angle grinder running longer and more easily. There is a torque-limiting clutch that helps stop kickback from becoming dangerous when the wheel jams.

You can get back to work without problems or injury with this automatic clutch feature. The carbon brushes also stop automatically when they need to be replaced or there is an issue.

 Pros:

 Cons:

  • Equipped with manual, hybrid, and fully automated assembly systems

  • Made with Germany engineering

  • Fits 4 1/2-inch discs

  • Long-lasting construction and design

  • Exceptionally powerful motor

  • Side handle allows for two positions

  • Hard to use guard lock

  • A bit hNeeds plug in to operateeavy for long-term use

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4. DEWALT DWP849X 7-Inch/9-Inch Variable Speed Polisher

DEWALT DWP849X 7-Inch/9-Inch Variable Speed Polisher

The DEWALT Buffer/Polisher 7-Inch/9-Inch (DWP849X) offers incredible features for a variable speed angle grinder. This is a high-quality variable speed tool that gives you the option to select from an electronic module a specified speed.

You will see great results when working at a consistent speed, which is managed using a handy trigger.

The materials of this variable speed 7-inch angle grinder were designed to be extremely long-lasting and durable. The steel gears in the tool are heat-treated, precision-cut to allow for a smoother operation.

The different components are less likely to become damaged or worn. Wool ingestion shields were added to the design to prevent wool from damaging the grinder and affecting the overall tool lifespan.

Multiple aspects of this angle grinder tool are present to help with comfort and usability. It has a moderate weight, which means you can lift it for longer periods. The rear handle on the tool has a rubber over-mold to provide more comfort.

There is a bale handle with three different positions, plus a side handle. And throughout the entire tool, a non-marring, rubber gear case cover prevents scratches and scuffs while handling a workpiece.

 Pros:

 Cons:

  • All-ball bearing for long life

  • Maintains specified speed under load

  • Heat-treated, precision-cut steel gears allows smoother operation

  • Rubber gear case helps reduce surface imperfections

  • Increased tool life thanks to wool ingestion shield

  • Three-position bale handle and side handle

  • Only has a limited warranty

  • A bit heavy for long-term use

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5. BOSCH GWS13-50VSP 5 In. Variable Speed Angle Grinder with Paddle Switch

BOSCH GWS13-50VSP 5 In. Variable Speed Angle Grinder with Paddle Switch

As a variable speed angle grinder, the BOSCH GWS13-50VSP 5 In. Angle Grinder functions excellently for a wide range of applications, including cutting, grinding, and more. This tool has a 13 AMP motor and can reach speeds up to 11,500 RPM.

The variable speed setting allows the user to choose a relatively constant speed anywhere between 2,800 and 11,500 RPM. Higher overload capabilities are possible with this grinder tool thanks to direct-motor cooling.

The no-lock multi-grip design of this sturdy angle grinder with variable speed settings can handle a lot. This paddle switch lets you find the most comfortable grip position for the application. Plus, there is a two-position side handle outfitted with Vibration Control.

An integrated acceleration sensor prevents some of the kickback and recoil that can occur during operation. The adjustable guard also features burst protection.

This angle grinder keeps a reliable speed with the use of constant electronics. You can run this tool consistently at the same speed, even under load.

Special airflow design keeps dust and debris from entering the motor and stopping your work. You can also manage the brushes better because the tool lets you know when they require preventative maintenance.

 Pros:

 Cons:

  • Uses more durable carbon brushes

  • Direct-motor cooling for higher overload capabilities

  • Paddle switch provides multiple grip positions

  • Two-position vibration control side handle

  • Integrated acceleration sensor to limit recoil

  • Burst-protection, tool-free adjustable guard

  • Does not come with case

  • Easily causes hand fatigue

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6. Makita 9564CV 4-1/2-Inch Variable Speed Control Angle Grinder

MMakita 9564CV 4-1/2-Inch Variable Speed Control Angle Grinder

Try the Makita 9564CV 4-1/2-Inch Angle Grinder for your most heavy-duty applications. It has a powerful 13 AMP motor that allows the variable speed control angle grinder to maintain different speeds even when under load.

The entire motor has Sass technology built into it that prevents damage to the gear and motor components. This system lets the drive shaft slip in case the wheel is forced to stop.

This 4 1/2 inch angle grinder with variable speed settings is made to be incredibly sturdy. The motor is protected by a labyrinthine construction and sealed with zig-zag varnish. Dust and debris cannot easily enter the gear housing.

There is an electronic limiter, too, that reduces motor overload and burnout by stopping the motor in an emergency. This limiter helps maintain the variable speed. This variable speed setting has five different stages that are controlled with a dial.

Makita equips this adjustable speed angle grinder with its innovative super joint system. The motor armature and spiral bevel gear are linked with a coil spring.

This spring relaxes if the grinding wheel catches. This spring helps protect the motor from severe damage and lets you get back to work quickly.

 Pros:

 Cons:

  • Mechanical clutch system prevents gear and motor damage

  • Constant speed control to maintain speed under load

  • Soft start provides smoother startups

  • Finished with protective zig-zag varnish

  • Lock-on switch for easy operation

  • Variable speed is ideal for stone work

  • Paddle switch is a bit tricky to use

  • Does not have capability for 7 inch wheels

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7. Milwaukee 2980-20 M18 Variable Speed Grinder With Paddle Switch

Milwaukee 2980-20 M18 Variable Speed Grinder With Paddle Switch

Variable speed grinders are available in more power options beyond electric. The Milwaukee 2980-20 M18 FUEL 4-1/2 in. – 6 in. is an angle grinder with variable control settings that uses battery power to run its powerful motor.

This tool uses REDLINK PLUS intelligence to help run the different systems at optimal levels. The performance is powerful enough and safe from overloading, overheating, and over-discharging.

A Rapid Stop Brake can be engaged at any time to stop the accessories on the tool in under 3 seconds. A high-powered battery is used to make this grinder function at the same speeds as an electric-powered tool.

This battery is a REDLITHIUM HIGH OUTPUT XC6.0 model that is specific to the Milwaukee brand. You can reach up to 9,000 RPM with this tool, which is equivalent to a 13 AMP grinder.

You can work through heavy-duty work using this grinder with speed control. It comes with a variety of accessories and tools that you will need.

These accessories can be changed without tools so that you can get back to work as soon as possible. Your control of the tool is easily changed to match your needs with the adjustable side handle.

 Pros:

 Cons:

  • Equipped with paddle switch, no-lock feature

  • Brushless motor is more durable

  • REDLINK PLUS intelligence provides maximum performance

  • Rapid Stop Brake can stop all accessories in less than 3 seconds

  • Made with sturdy metal materials

  • Easily portable design

  • Must charge batteries

  • Very heavy for continuous use

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8. DEWALT DWE43214NVS 5-Inch Variable Speed Angle Grinder

DEWALT DWE43214NVS 5-Inch Variable Speed Angle Grinder

If you are looking for a powerful angle grinder that does not have brushes in the motor, the DEWALT Grinder (DWE43214NVS) has what it takes for a variety of applications. This is a variable speed hand grinder that does not need maintenance to replace brushes.

Other features help keep this tool running smoothly for years and years. For example, there is a grinder brake that automatically stops the wheel in about 2 seconds if you have an emergency.

There is also an electronic kickback brake that engages during a stall, pinch, or bind-up event. The tool simply senses this event and uses all of its force to stop the wheel and reduce movement to prevent serious injury.

An on/off trigger switch also comes with a no-volt release function. This helps you during a power outage or strange event. The tool will not turn back on unless you go through a series of steps.

If you want to turn the tool on, to begin with you need to engage a 2-stage trigger. This trigger prevents the angle grinder from starting up unexpectedly.

There is a side handle that can be changed around to either side for more control and comfort during operation.

 Pros:

 Cons:

  • Brushless motor needs less maintenance

  • Kickback brake engages during pinch, stall, or bind-up events

  • 2-stage trigger requires two actions to turn tool on

  • On/off trigger has a no-volt release function

  • Brake stops wheel in about 2 seconds

  • Comes with integrated lanyard attachment point

  • Must use near a plug in

  • Does not come with accessories

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9. Makita GA4542C SJSII 4-1/2″ High Power Angle Grinder

Makita GA4542C SJSII 4-1/2

The Makita GA4542C SJSII Angle Grinder can be used with 4 1/2 inch wheels and has a sturdy 12 AMP motor. Every application you can imagine is possible with this grinder with speed control.

It can be set to speeds ranging from 2,800 to 11,000 RPM and holds at those speeds consistently. The variable speed is controlled with a simple dial that can be set to a custom speed.

There is a leaf spring, as well as a cam gear drive mechanism built into this tool that reduces vibration at fast speeds. The tool will not show as much wear and tear on the motor with this mechanism.

Other wear is prevented with zig-zag epoxy on the side of the armature coil. A powder coating is also applied on the field as a barrier to debris. The spiral bevel gear design is a smoother method for energy transfer to the tool.

This versatile angle grinder speed control tool is exceptionally comfortable and reliable. A motor fan is outfitted to the tool. This motor fan has large fins that help increase airflow and let the motor run cooler even under load.

Use the side handle that is angled slightly forward to control this tool with the slightest turn of a hand.

 Pros:

 Cons:

  • Leaf spring and cam gear drive mechanism helps reduce vibration

  • Three-part electronic controller

  • Has a mechanical gear drive to prevent gear and motor damage

  • Spiral bevel gears for smoother rotations

  • Motor fan designed to increase air flow

  • Powder coating provides protection from debris

  • Air inlets not place strategically

  • Heavy for continuous use projects

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10. Metabo HPT Variable Speed 12-Amp Overload Protected Angle Grinder

Metabo HPT Variable Speed 12-Amp Overload Protected Angle Grinder

Take your angle grinding work to the next level with the high-quality Metabo HPT Angle Grinder. This angle grinder uses its high torque motor to make even the biggest, most heavy-duty easier.

This strong motor offers up to 12 AMP of power and can run at a speed upwards of 10,000 RPM. An inverter circuit is included, which means you can use this grinder tool with a generator without problems.

Multiple aspects of this 4 inch variable speed grinder with variable speed control are designed for durable, reliable power. This motor is brushless, which means you do not need to spend lots of time on maintenance. The tool has a lighter weight and smaller size as a result of the no-brush design.

A paddle switch lets you only turn the tool on when the lock-off lever is pushed fully down. Other safety features include a kickback reduction setting. This setting automatically cuts off power in the case of a bound wheel.

The gears of the motor are better protected from undue harm or early wear. Zero voltage restart protection helps restart the tool more smoothly if power gets cut off without seen cause.

 Pros:

 Cons:

  • High torque motor for most heavy-duty applications

  • Brushless motor needs limited maintenance

  • Paddle switch to prevent accidental startups

  • Kickback reduction shuts tool down in an emergency

  • Zero voltage restart protection provides safety during power cuts

  • Durable motor construction to prevent debris build-up

  • Slippery material on the casing

  • Wheel safety cover is a bit builky

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Also, Check Our Related Guides:

Things to Consider Before buying a Variable Speed Angle Grinder

Power

The power of the motor determines how quickly you can work. Without enough AMP in the motor, the grinder will not be able to achieve the speeds necessary for heavy-duty applications.

Variable speed angle grinders typically have powerful motors that can produce maximum speeds of 10,000 RPM.

Disc Size

Angle grinder tools with large discs are associated with more heavy-duty applications. If you have a 4 1/2 inch or 5-inch disc, you are most likely working with more delicate work.

Choose a disc size based on your specific model. You should not use a bigger disc than the one specified for that grinder.

Speed

Speed is measured in rotations per minute or RPM. Check that your angle grinder tool can deliver the speed you need for your application.

Variable speed angle grinders give you the option to select a specific speed. However, speed is only as good as the motor on this type of tool.

Brushless Crushers

If you can choose a model that does not use brushes in the motor, you will not need to spend time replacing them. Otherwise, motor brushes eventually wear out and need to be serviced to avoid motor damage.

Safety Features

Safety is important when dealing with a dangerous, fast-spinning tool like an angle grinder. Look for a model that has adjustable wheel guards and soft start mechanisms.

Some tools even have mechanisms that prevent kickback in the event of a stalled or pinched wheel.

Comfort and Control

The handles on any angle grinder should feel natural for you to hold. Handle grips sometimes are over-molded for a more comfortable, ergonomic feel.

Control can also be enhanced on an angle grinder if it is equipped with vibration control. Look to see where the switches are located on any model because these will be used a lot.

Drive Diameter

Drive diameter pertains to the diameter of the disc for the tool. This is the smallest outside diameter of the tool and the part that comes into contact with the workpiece.

Some angle grinders will not be able to fit an accessory with a bigger drive diameter. Take into account your intended use of the tool before looking at the drive diameter.

Power Source

Angle grinders are usually either electric-powered or battery-powered. If the tool is powered by batteries, you do not need to worry about a cord.

However, you also need to charge batteries between use. An electric-powered grinder is more common. Electric-powered angle grinders require the user to be near enough to plug in to work the tool.

Price

The price of an angle grinder can vary a lot depending on the brand. A very reliable angle grinder tool may cost more than a basic machine.

However, you should focus more on the features and specifications than the price. A very expensive tool will not do you any good if it cannot help you with your work.

Warranties

A warranty on an angle grinder will give you peace of mind. Warranties usually come from the manufacturer and protect the different components.

This extra is a good option to look for because you can protect yourself from unexpected issues.

What is a Variable Speed Angle Grinder?

A variable speed control angle grinder is a type of angle grinder that has a dial or switch to set the speed. Compared to fixed speed tools, a variable speed tool can run at lower speeds or higher speeds consistently while you work.

If you can choose the speed, you can work on more specific pieces. Different applications may require lower speeds so that you can control the cut.

Other applications may require higher speeds so that you have enough cutting force to get through a material.

When do you Need a Variable Speed Angle Grinder?

An angle grinder speed control may be most useful if you have a specific application in mind. Sometimes an application requires more finesse and delicateness than you can achieve with a fixed speed tool.

Occasionally, you will also work with a material where you need a little more control. A very fast, fixed speed angle grinder may run away from a user if they are not careful.

Some specific applications that people use an adjustable speed angle grinder for include, wire brush cleaning, sanding, and cutting softer materials. When working with a wire brush, a slower speed ensures that you do not ruin the accessory or burn it up.

At a slower speed, it is also easier to get an angle grinder tool into tight spaces and corners without experiencing a lot of dangerous kickback.

Main Features of a Variable Speed Angle Grinder

Variable speed angle grinders are not as common as fixed speed models. When you are looking to purchase a variable speed model, consider some of the main features that are included.

Some of these features may vary depending on the model. Pick out an angle grinder model that matches your intended applications.

Efficiency

An adjustable speed angle grinder needs to be efficient. If your tool does not have enough power to maintain the constant speed it is set at, then you will spend more time worrying about the speed than completing your work.

Applicability

The ability to change the speed settings to match a specific application is essential with a variable speed control angle grinder.

A great model will let the user select from several common speed settings that match popular applications.

Safety

When you can control the speed on your angle grinder, you still need to have safety features. If you are putting the tool at a higher speed, you should have features like automatic power off and soft start.

A soft start powers the tool on slowly and smoothly so you can reach a high speed after you have control of the machine.

Durability

Durability is important for an angle grinder with variable speed settings. Variable speed tools can run through different speeds at different times, which puts strain on the motor.

A well-designed motor will be protected against debris and wear.

Ease of Use

Accessible switches and easy-to-use dials are vital for a variable speed tool. You should check to see if the switches can be turned on or off easily while using the tool.

The dial or controls used to change the speed is also something that should be intuitive and not complicated.

Speed Settings

Consider the provided speed settings on any variable speed grinder tool. Delicate work is easily done at lower speeds, but you will not find as many tools with very low-speed settings.

A wide range of speed settings, with four to five stages, is a good place to start.

Motor Power

Motor power, measured in amps, helps determine what things you can accomplish with an angle grinder. A robust motor with a lot of power is essential if your work involves cutting through hard material or lots of polishing.

Wheel Size

You can choose an angle grinder with variable speed controls with a variety of wheel sizes. Variable speed settings are not specific to smaller or larger discs.

The difference between the wheel size only matters with the type of work you do.

Ability to Slow Speed

Some angle grinders with variable speed let the user slow the tool down in case of an emergency. This safety feature is not exclusive with variable speed tools, but they are very common with them.

This feature may be a switch that can be easily accessed.

Consistency

Angle grinders with variable settings are usually consistent. Consistency is an important feature for an angle grinder because rapidly changing speed can mess with your control.

A constant speed setting that does not vary much at all can ensure a smoother cut or polish.

FAQs

1. What are the Different Types of Angle Grinder?

There are many different types of angle grinders, including tools that are powered with electricity or batteries. Angle grinders can also be broken up between fixed speed and variable speed models.

Fixed speed does not allow the user to maintain a constant speed. Variable speed grinders can be controlled by turning a dial to a specific speed setting.

2. Does Dewalt make a Variable Speed Grinder?

DeWalt makes several variable speed grinders that offer the user the ability to choose a speed. These grinders feature excellent motors with powerful designs. DeWalt pays attention to offering speeds for different applications.

There are also safety features like a trigger switch so that the tool cannot turn on without a series of steps.

3. Do Angle Grinders have Speed Control?

Some angle grinders come with speed control that allows the user to set a dial to a specific speed. Many of these variable speed grinders feature multiple stages of power and RPM to meet common applications.

In many cases, angle grinder tools do not have speed control settings. Without speed control, the user must work with less stability.

4. What does No-load Speed Mean on an Angle Grinder?

No-load speed refers to the speed that a disc on an angle grinder can rotate before it comes into contact with the workpiece.

Usually, this speed is much faster and more powerful. A high no-load speed is an excellent feature, but it should be matched with a powerful motor.

Final Thoughts

Perhaps one of the most excellent models available for a variable speed control angle grinder is the Makita 9565CV 5″ Variable Speed Angle Grinder. This tool is powered with a 13 AMP motor and lets the user set the speed anywhere between 0 and 10,500 RPM.

The speed setting is controlled with a basic trigger that can be dialed as high as the maximum setting. However, the aspect that makes this grinder special is that the tool combines numerous safety and power features with variable speed controls.

Finding the best variable speed angle grinder is a matter of selecting a tool that anyone can use intuitively. If you cannot pick up on the proper way to change the speed, then the tool will not be very useful for you.

A reliable variable speed grinder can be used for many different applications. Consider what type of work you are most likely to conduct with an angle grinder, and you can find the best model.

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