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The Best Angle Grinder 2021

best angle grinder

An angle grinder is the best tool for polishing, grinding or cutting through rusted bolts, damaged panels and other components. They are available as a cordless or corded power tool that vary in power to suit your requirements.

The best angle grinder is the DEWALT DCG413, which is battery powered with a 850 watt power output that delivers a no-load speed of 9,000 RPM.

Most angle grinders are available in disc sizes that range from 4 to over 10 inches. However, for most auto repair or DIY applications, 4.5 inch is the perfect size that will cut through most metals and other materials.

Table of Contents

Angle Grinder Comparison

Angle GrinderTypeSpeed
DEWALT DCG413BCordless9,000 RPM
Makita 9557PBX1Corded10,000 RPM
Porter Cable PCC761BCordless8,500 RPM
Hitachi G12SR4Corded10,000 RPM
Bosch 1375ACorded11,000 RPM
Milwaukee 2680-20Cordless10,000 RPM
Metabo WP9-115Corded10,500 RPM

An angle grinder is a versatile power tool that can be used for a variety of applications. Whether you are using it for cutting metal or removing rust, it is available in many configurations that are suitable for automotive use.

Powering up angle grinders can be achieved using a power cord or a cordless battery. There is also air-powered alternatives but they are less common.

Below is a list of the best angle grinders that are available as powerful corded or cordless tools that use a 4.5 inch disc.

The Best Angle Grinder

1. DEWALT DCG413 Cordless Angle Grinder

DEWALT are a brand that dominate the tool industry and have a reputation for high quality power tools. The DCG413 cordless angle grinder is by far one of the most popular and has a maximum speed of 9,000 RPM.

It’s important to note that DEWALT sell this model as the tool only. Therefore you will need to purchase a battery pack if you haven’t already got one.

Features of the DEWALT DCG413B include:

  • 4 1/2 inch wheel diameter
  • Paddle switch blade brake
  • 2 position side handle
  • Easy to switch between wheels
  • 850 watts output
  • Brushless motor
  • 3 year limited warranty

The DCG413 model by DEWALT is one of the best cordless angle grinders available but it does come at a cost. When you include the battery pack, it becomes one of the most expensive within this article. However, they do offer alternatives that use a power cord and are more affordable.

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2. Makita 9557PBX1 4 1/2 Angle Grinder

Another popular angle grinder is the Makita 9557PBX1, which uses a 4 1/2 inch abrasive disc. It is powered by a powerful 7.5 amp motor that delivers high output for cutting through metal and other automotive components.

To ensure a smooth power delivery, it has a dual ball bearing design that safely transfers the power through the gears.

Other features of the Makita 9557PBX1 include:

  • Weighs just 4.5 LBS
  • Lock on and off features
  • Extra large paddle switch
  • 10,000 RPM single speed
  • Aluminum storage case
  • Zig-zag varnish seals and labyrinth construction
  • AC/DC switch for using alternative power supplies
  • Adjustable side handle

The Makita 9557PBX1 is a highly rated angle grinder that is built to high standards for superior durability. It does come with a premium price tag but it’s the best option for those that regularly use angle grinders in tough environments.

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3. BLACK+DECKER BDEG400 Grinder Tool

If you require an affordable angle grinder, the BLACK+DECKER BDEG400 is the best option. It uses a 4 1/2 inch wheel and 6.5 amp motor for cutting metal and grinding other materials with ease.

For those that attach various accessories to the angle grinder, the BDEG400 model uses a spindle lock to make the changes far easier.

Other features of the BLACK+DECKER BDEG400 include:

  • 3 position adjustable handle
  • Metal gear casing for additional durability
  • One touch release switch
  • Includes a spanner wrench
  • Ergonomic grip

Overall, the BLACK+DECKER BDEG400 is the best angle grinder for the money that won’t disappoint. It is ideal for removing rust, cutting, grinding and a range of other applications.

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4. Porter Cable PCC761B Cordless Grinder

An affordable cordless angle grinder is the Porter Cable PCC761B, which has a high powered motor that delivers 8,500 RPM. This is made possible by the 20V Max System, which must be purchased to use this cordless grinder.

Unlike other cheap alternatives, this angle grinder uses a cast metal gear housing to dissipate heat during extended use.

Other features of the Porter Cable PCC761B include:

  • High performance motor that produces 8,500 RPM
  • 3 position adjustable handle
  • Spindle locking for wheel changes
  • Contoured grip for comfort
  • Tool free guard
  • Sold as a bare tool

Cordless angle grinders are known for being expensive but the Porter Cable PCC761B is an affordable option. It also comes with a 3 year limited warranty for peace of mind and is backed by the reputable brand.

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5. Hitachi G12SR4 Angle Grinder

Hitachi are a highly reputable power tool brand and they produce a range of angle grinders. The G12SR4 is their most popular and is available with a 5.1, 6.2, 7.4 and 8.0 amp motor to suit your grinding requirements.

Although it has a powerful motor, the G12SR4 is still a compact and lightweight angle grinder with a gross weight of 4 LBS.

Other features of the Hitachi G12SR4 include:

  • Spindle lock for quick disc changes
  • Trigger lock-on
  • Multiple handle positions
  • Includes 5 abrasive wheels
  • 4 1/2 inch wheel diameter
  • Storage box included

Overall, the Hitachi G12SR4 is an excellent all-round angle grinder that combines performance with value for money. Depending upon your requirements, you have a choice of power options that best suit the grinding application.

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6. Bosch 1375A 4 1/2 Angle Grinder

The Bosch 1375A is a budget angle grinder that weighs just 3.75 LBS, which makes it comfortable and easier to use. Although it’s a cheap option, it features a powerful 6.0 amp motor that delivers 11,000 RPM.

A unique feature of this grinder is “Bosch Service Minder Brush System”, which automatically stops the tool when maintenance is required.

Other features of the Bosch 1375A include:

  • Efficient motor with a small field diameter
  • Two position side handle with an ergonomic grip
  • 5/8 to 11 inch spindle for accessories
  • Epoxy coated finish to protect against damage
  • 8 feet long power cord
  • Lock-on switch for continuous usage

Bosch are known for their high quality power tools and the 1375A angle grinder is a great example. It also comes with a 1 year warranty and service protection plan for peace of mind.

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7. Milwaukee 2680-20 Cordless Grinder

The Milwaukee 2680-20 is a cordless angle grinder that is designed to cut through metals, PVC and other materials. It uses a powerful motor that is battery powered and capable of spinning the wheel up to 10,000 RPM.

A unique feature of the 2680-20 model is the “L” shape molding near the wheel. It is designed to pick up any debris and prevent clogging of the internal components.

Other features of the Milwaukee 2680-20 include:

  • Easy to activate paddle switch design
  • Adjustable guard
  • 3 position side handle
  • Rubber textured grip
  • M18 compatible
  • Overload protection

The Milwaukee 2680-20 is an affordable cordless angle grinder that comes packed with clever design features. As with most of the other cordless grinders, this model will require a compatible M18 battery pack.

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8. Metabo WP9-115 Angle Grinder

The Metabo WP9-115 is a premium corded angle grinder that is suitable for both AC/DC operation. It uses a 900 watt motor that the brand state provides up to 50% more torque and 20% higher overload capacity compared to similar priced grinders.

To ensure that the motor runs at it’s peak performance, it has an advanced design that optimizes the air flow to allow for a cooler operation.

Other features of the Metabo WP9-115 include:

  • 4.5 inch diameter disc
  • Long life 8.5 amp motor
  • Spins the wheel at 10,500 RPM
  • Automatic shutdown once paddle is released
  • Single button to change the disc
  • Safety slip clutch to reduce kick back

The Metabo angle grinder is highly rated and uses high performing motor that delivers efficient power. The brand also state that the WP9-115 model offers the fastest tool-free disc change of any system with a touch of a button.

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Angle Grinder Buying Guide

Angle grinders are versatile power tools that are found in most auto repair garages. They can used to easily cut through metals, remove rust and a range of other applications. Although they can’t cut through thick metals like a plasma cutter, you can switch between abrasive discs to suit your cutting requirements.

To help you make an informed buying decision, we have produced the below guide regarding angle grinders.

best cordless angle grinder

Corded vs Cordless

The two main types of angle grinders include a corded or cordless grinder. Most brands will sell one of each and may also include the less common air powered grinder for those with an air compressor.

Corded angle grinders are the most popular and allows you to have indefinite running time and constant power. They are also the cheapest angle grinder type, which is great for those on a budget. The main disadvantage is that your movement will be limited by the length of the power cord.

Cordless angle grinders use rechargeable Lithium battery packs to power the grinder and provide unlimited movement. Most modern units use brushless motor and the latest battery technology that allows for longer operation and faster charging. However, there is a possibility that you may run out of charge, which is not ideal for professionals that use them on a daily basis.

Abrasive Discs

All of our recommendations within this article use a 4.5 inch diameter disc, which is perfect for DIY projects and auto repair. However, there are many angle grinders that use smaller or much larger discs for specific application that may need a deeper cut.

Choosing the correct disc for the task in hand is crucial because it will be far more effective. They are available in multiple types that use different grains that provide separately benefits and drawbacks.


The majority of angle grinders will be able to spin the disc at 8,000 RPM or more. The increased speed will allow you to get to the finished result more quickly but require more control as you may end up damaging the surface.

Some premium options may include variable speed settings that allow you to choose the desired speed. They are an excellent choice that makes the tool more versatile for numerous applications.

Ergonomics and Weight

Some tasks that require an angle grinder may be time consuming, which means the tool needs to be comfortable to use. Almost all grinders will have an adjustable handle that can move in two or three positions to suit your requirements. The handle grip may also be contoured to allow for maximum control.

The weight of the tool is just as important with the lighter angle grinders being easy to control. Cordless options are usually slightly heavier due to the battery pack.

Other Desirable Features

Unless you choose a basic angle grinder, many of the premium options come packed full of intuitive features such as:

  • Dust sealed to protect the internal components
  • Hand guards to protect yourself against sparks
  • Slow start to prevent kick backs
  • Tool-free disc changes
  • Quick release spindle for accessory changeovers
  • Blade braking
  • Lock on switch for continuous use
  • Heavy duty metal casing
  • … and much more

If the angle grinder you buy doesn’t come with a storage case, we highly recommend purchasing one. This will keep the angle grinder secure and keep all the accessories and abrasive wheels together.

best angle grinder wheel for cutting metal


In the wrong hands, angle grinders can be very dangerous and cause serious injury. The spinning disc can send debris and sparks flying from the surface at high speeds. Certain models have been designed to improve the safety with features that prevent kick backs, block debris or sparks and much more.

Safety tips that we would recommend include:

  • Wear safety goggles and heavy duty gloves
  • Asses the abrasive wheel for any damage
  • Ensure the guard is suitably placed
  • Check that the attachment is securely locked on the spindle
  • Prepare yourself for the kick back

Safety is paramount when using an angle grinder and must not be ignored.


Angle grinders are rugged tools that have been designed for tough environments and heavy duty usage. However, as good practice, you should try to remove all the dust and debris after using the tool. We also advise that you check the electrical connections, power cord and disc for any damage on a regular basis.


Angle grinders are one the most versatile tools available and come with a range of accessories for different applications. Whether you are using them just for auto repair or DIY projects, they are available in a range of configurations.

All of our recommendations are suited to a range of budgets and include both corded and cordless grinders. We advise that you buy from a reputable brand that offer a range of abrasive discs or other accessories that are suitable with the grinder.

procarreviews author

Written By Dan

About the Author

Dan is an automotive journalist and owner of over 10 cars ranging from supercars, tuned cars, classics and your good old beater cars. He always likes to get his hands dirty with nut and bolt restorations or detailing sessions using the best products on the market.

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