Milwaukee Angle Grinder Review & Buyers Guide


best milwaukee angle grinder reviews

Milwaukee tools are a trusted brand in a wide range of applications, including angle grinders. With such a wide selection of angle grinders to choose from, what are some of the features of this brand that makes it stand apart from other brands?

Milwaukee is a company that specializes in crafting versatile and powerful grinders, with cordless, battery-powered grinders being the main niche of the company.

milwaukee angle grinder

8 Best Milwaukee Angle Grinder Reviews

In this article, we will explore 8 of the best Milwaukee angle grinders on the market today with a look into the best features of each as well as the pros and cons. Additional questions will explore what you can expect with a Milwaukee angle grinder and some frequently asked questions about performance.

Overview

Milwaukee angle grinders constantly push the envelope of what is capable with a cordless, battery-powered grinder. This brand’s grinders also prioritize changing and upgrading some of the features that cause users frustration and discomfort, such as wheel guards and the inability to change wheel sizes with ease.

If you are a proponent of being able to grind effectively without having to be straddled with a cord, then a grinder from this brand is the perfect brand for you to consider.

Key Features

Some of the most common features of a Milwaukee grinder include:

  • Paddle switch technology
  • Increased fuel makes for long-lasting motor performance
  • Milwaukee tools are some of the best cordless power tools on the market
  • Wide-range of RPM speeds to choose from
  • Maintains the same grinding power as a corded model

Performance

The grinders for this brand are regularly identified and praised for the long-lasting battery performance of each grinder model. Most of the batteries depending on the model in question are compatible with any cordless model, which means you can take the grinder with you wherever you need to go and not have to worry about frequent battery changes, and best of all, not having to be concerned with finding an available electrical outlet as is common with other models.

The FUEL models for this brand are truly incredible for the length of time that the grinder can last, which is a hallmark of Milwaukee tools in general. The Powerstate motors and Red Lithium batteries are what truly make a Milwaukee angle grinder stand out in a sea of angle grinder manufacturers.

Value for Money

Value for money is also a big selling point when it comes to the grinders from this brand. Not every model is as good or as long-lasting as some, but if you stay within the parameters of what the model is designed for, you will find that your Milwaukee grinder lasts for a long time indeed, which is pretty impressive for a cordless grinder.

Long-lasting performance translates to good value for money.

Take a look at this video to get a visual inspection of an M18 model in action:

Top 8 Best Milwaukee Angle Grinders:

The following Milwaukee models range from corded to cordless angle grinders, with comprehensive kits and even brushless grinders in between. Each model brings something distinctive and useful to the grinding process. Let’s take a look.

Sale
Milwaukee 2780-20 M18 Fuel 4-1/2"/5" Pad, Bare
  • POWERSTATE Brushless Motor: Delivers maximum power and up to 10X longer motor life
  • REDLINK PLUS Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC5.0 Battery Pack (not included) provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • POWER TO GRIND: World’s first cordless grinder with corded performance.
  • DURABILITY: Same metal housing & gearing system as legendary high performance corded grinders

1. Milwaukee 2780-20 M18: (Editor’s #1 Pick)

Our top pick for Milwaukee angle grinders delivers the power of a corded grinder with up to two times more run time and up to 10 times longer motor life. This angle grinder supplies maximum sustained power to complete the toughest grinding, surface preparation, and cutting applications.

The brushless motor provides up to ten times longer motor life and lowers the cost of ownership. What truly makes this our number one pick is the inclusion of RedLink Plus intelligence, which is the most advanced system of cordless power tool electronics designed to achieve superior maximum performance.

The 18-volt lithium-ion grinder’s thin body design gives it an optimized balance to rest easily in your hands, which is further aided by tool-free accessory changes and guard adjustments, which means less downtime during work.

The grinder is built with the same tool body, gearing system, and anti-vibration side handle as Milwaukee’s legendary high-performance corded grinders for maximum durability on the job. There are many more models to discuss but this model is the best representation of the brand when it comes to angle grinders.

Pros:

  • The motor delivers maximum power and up to 10 times longer motor life
  • RedLink Plus Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery, and charger
  • World’s first cordless grinder with corded performance.
  • Incredibly durable and featuring the same metal housing & gearing system as legendary high performance corded grinders
  • 100% tool-free application makes all accessory changes and guard adjustments without a wrench for increased productivity
  • The paddle-switch design provides increased comfort and ease-of-use when operating in various positions

Cons:

  • Short handle
  • Cordless grinders may require many battery pack changes
  • May not respond well to heavy-duty grinding

2. Milwaukee 2680-20 M18:

Milwaukee 2680-20 M18 18V Lithium Ion 4 1/2 Inch Cordless Grinder with Burst Resistant Guard and Paddle Switch Design
  • PADDLE SWITCH: You can activate this grinder easily, even when you’re wearing thick work gloves, thanks to the paddle switch design
  • DEBRIS BAFFLES: An “L” shape molding near the grinding wheel picks up debris and prevents it from clogging up the tool’s internal components
  • TOOL-FREE GUARD: The guard is easily adjustable. All it takes is the push of a button, and you can have the guard adjusted for a variety of cutting applications at different angles
  • 3-POSITION SIDE HANDLE: Work with maximum stability with the help of the plastic handle, included in this kit
  • M18 COMPATIBLE: This Milwaukee power tool works with M18 18v lithium ion Milwaukee batteries. Compatible models include the 48-11-1860, 48-11-1850, 48-11-1828, and 48-11-1815, 48-11-1840, 48-11-1820

Milwaukee is known for providing some of the best angle grinders on the market for a range of cutting and grinding materials. The 2680-20 M18 grinder has features loaded in that make it a breeze to use on a variety of different job sites in addition to its powerful motor that drives the wheel up to 10,000 RPM.

You can achieve maximum control with the rubber-textured handle and 3-position plastic handle. On top of that, you can adjust the wheel guard to suit a variety of applications requiring different cutting angles.

Activation of the power tool is easy, too, with the help of the paddle-styled power switch, which makes activation possible even when you’re wearing thick work gloves. With Redlink Intelligence, you’ll be able to work as hard as you can without wearing the motor down, thanks to the cross-communication between the tool and the M18 battery charging it.

From automotive repair to plumbing or demolition projects, you’ll find boundless utility with this Milwaukee grinder in your professional tool kit, which is one of the best models in the Milwaukee M18 series.

Pros:

  • You can activate this grinder easily, even when you’re wearing thick work gloves, thanks to the paddle switch design
  • An “L” shape molding near the grinding wheel picks up debris and prevents it from clogging up the tool’s internal components
  • The guard is easily adjustable thanks to a convenient switch. All it takes is the push of a button, and you can have the guard adjusted for a variety of cutting applications at different angles
  • Work with maximum stability with the help of the plastic handle, included in this kit
  • This Milwaukee power tool works with M18 18v lithium-ion Milwaukee batteries.
  • 4-pole motor delivers maximum power when cutting or grinding
  • Overload protection prevents damage to the tool and battery in abusive situations

Cons:

  • Swivel blade protector and grinder paddle is prone to slipping
  • The motor is prone to overheating

3. Milwaukee 6130-33 7:

Milwaukee 6130-33 7 Amp 4-1/2" Small Angle Grinder
  • The product is easy to use
  • The product is durable
  • The product is manufactured in China
  • Wheel Diameter: 4-1/2", Switch Type: Slide, AMPS/Overload Protection: 7.0 AMPS, Max Watts Out (Power): 750
  • Speed RPM: 11000, Voltage: 120 AC Only, Epoxy Motor Protection: Yes, Debris Baffles: Yes, Exhaust System: Multi-Port

Sometimes great things come in small packages, and that statement is true of this small angle grinder. Featuring a compact and lightweight design, the 4-1/2” Small Angle Grinder (6130-33) is the smallest in Milwaukee’s extensive grinder line and is the only tool in its class with a tool-free burst resistant guard.

The built-in advanced airflow system, including debris baffles and multi-port exhaust, helps to extend tool life, while the grinder paddle truly makes using a small angle grinder a worthwhile investment for smaller cutting and grinding projects. This Milwaukee model will not work well with large, heavy-duty applications, however, a small angle grinder can be useful is you are working with a range of small materials.

Pros:

  • Easy to use
  • Durable and safe paddle switch technology
  • Features a four and a half-inch wheel diameter
  • 11,000 RPM

Cons:

  • Prone to heavy vibration and possible overheating
  • May require frequent battery pack changes

4. Milwaukee 2785-20 M1

Milwaukee 2785-20 M18 Fuel Li-ion 7"/9" Large Angle Grinder Bare Tool
  • Delivers the power of 15 Amp corded large angle grinder
  • Tool free accessory changes and guard adjustments
  • Brushless Motor provides 6,600 RPM and higher speeds under load for corded grinding/cutting performance
  • Metal housing and gearing system providing legendary durability
  • Dual action trigger: eliminating accidental trigger actuation

This Milwaukee small angle grinder is up to two pounds lighter and has a nine-inch grinding capacity. Providing high performance, advanced ergonomics, and legendary durability, this grinder is designed to complete the toughest grinding, surface preparation, and cutting applications with any seven to the nine-inch accessory.

The brushless motor provides 6,600 RPM and higher speeds under load for corded grinding/cutting performance. RedLink Plus intelligence ensures maximum performance and protection from overload, overheating, and over-discharge.

Additionally, the M18 REDLITHIUM High Output HD Tool-free accessory changes using the FIXTEC nut and guard adjustment, which means less downtime during work. This small angle grinder is sturdy and compact enough to grind just as effectively as a larger unit.

Pros:

  • Delivers the power of 15 Amp corded large angle grinder
  • Tool-free accessory changes and guard adjustments with paddle switch locking system
  • Brushless Motor provides 6,600 RPM and higher speeds under load for corded grinding/cutting performance
  • Metal housing and gearing system providing legendary durability
  • A dual-action trigger that eliminates accidental trigger actuation

Cons:

  • Incredible requires extra safety precaution
  • Prone to overheating

5. Milwaukee M18 FUEL:

Milwaukee M18 FUEL 4-1/2-6 Braking Grinder Paddle Switch, No-Lock (Bare Tool)
  • This refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, and may arrive in a generic box

The MILWAUKEE M18 FUEL 4-1/2″ – 6″ Braking Grinder, Paddle Switch, No-Lock is one of the highest performing small angle grinders and a truly strong Milwaukee tool overall. It generates the power of a 13A corded grinder, brakes all accessories under 3 seconds, and has a six-inch grinding capacity with increased safety with the inclusion of a paddle switch.

The POWERSTATE Brushless Motor provides users with 9,000 RPM and the power equivalent of a 13A corded grinder, delivering industry-leading performance, while the inclusion of RedLink Plus Intelligence ensures maximum performance and protects the angle grinder from overload, overheating, and over-discharge.

For added safety, a rapid stop brake feature stops all accessories in under 3 seconds. This grinder is small, durable, and safe.

Pros:

  • One of the highest performing M18 Fuel models
  • Durable and superior motor functionality

Cons:

  • Vibration can be pronounced

6. Milwaukee 2783-22 M18 FUEL Kit:

Milwaukee 2783-22 M18 Fuel 4-1/2" / 5" Braking Grinder - Kit
  • M18 Fuel 4-1/2" / 5" Braking Grinder - Kit
  • The product is easy to use and easy to handle
  • The product is highly durable
  • Voltage: 18V, Battery: M18 REDLITHIUM, Charger: M18 and M12 Multi-Voltage Charger

What if there was a product in the Milwaukee line that could combine all of the best features of the M18 line of angle grinders with additional accessories in a one-stop kit? That is exactly what you get with the 2783-22 model.

The grinder is built with the same tool body, gearing system, and anti-vibration side handle as Milwaukee’s legendary high-performance corded grinders for maximum durability on the job. The kit includes 2 M18™ REDLITHIUM™ XC5.0 Extended Capacity Battery Packs, a multi-voltage charger, and a carrying case.

The kit is what really sells this model, and is perfect if you are looking for one purchase that includes a range of grinding equipment that is compatible with many units within the brand.

Pros:

  • Easy to use and handle
  • Comprehensive kit with added accessories
  • 18-volt battery
  • Superior charging capabilities
  • Increased safety with paddle switch technology

Cons:

  • Does not include a grinding wheel
  • Prone to overheating

7. Milwaukee Cordless Angle Grinder 8500 RPM:

Sale
Cordless Angle Grinder, 8500 rpm
  • Power Tools and Accessories
  • Country of manufacture: China
  • Manufacturer: Milwaukee

This model of Milwaukee’s small angle grinder is up to two pounds lighter and has a nine-inch grinding capacity. Providing high performance, advanced ergonomics, and legendary durability, this grinder is designed to complete the toughest grinding, surface preparation, and cutting applications with any seven to the nine-inch accessory.

This is basically a higher RPM version of the 2785 model but is perfect if you like the great features in that model but wish to have a slightly higher, yet not too overpowering RPM-speed for a small grinder.

Pros:

  • Durable
  • Long-lasting
  • Superior RPM speed

Cons:

  • The guard wheel may need to be tightened frequently
  • Prone to overheating

8. Milwaukee 2780-21 M18 FUEL Battery Kit:

Milwaukee 2780-21 M18 FUEL 4-1/2"/5" PAD,1 Battery KIT
  • Paddle-switch design: Provides increased comfort and ease-of-use when operating in various positions
  • REDLINK PLUS Intelligence provides optimized performance, electronic clutch, and overload protection using total system communication between tool, battery and charger
  • REDLITHIUM XC 5.0 Battery Pack provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • POWER TO GRIND: World's first cordless grinder with corded performance.
  • DURABILITY: Same metal housing & gearing system as legendary high performance corded grinders

Another kit worth mentioning is the 278-21 M18 Fuel 4 Battery Kit. This grinder is built with the same tool body, gearing system, and anti-vibration side handle as Milwaukee’s legendary high-performance corded grinders for maximum durability on the job.

This kit includes an M18 REDLITHIUM XC5.0, as well as an extended capacity battery pack and a carrying case. A Milwaukee M18 angle grinder can sometimes take a lot of battery power, which is why this kit is a great package due to the additional battery kit.

Pros:

  • The REDLITHIUM XC 5.0 Battery Pack provides superior pack construction, electronics, and performance to deliver 2X more run-time and more work over pack life
  • World’s first cordless grinder with corded performance.

Cons:

  • The motor is subject to overheating
  • No grinding wheel included

Milwaukee Angle Grinder Buyers Guide:

When buying an angle grinder from this brand, keep these key points in mind:

  • Grinders can be both large and small. Remember how I said that Milwaukee grinders are versatile, well, that is certainly true and it is important to know the size of the grinder before purchase. Some tasks will require larger discs, whereas a smaller grinder, such as the 2785-20 M1 (see above), will require smaller discs beyond the standard four and a half-inch disc.
  • Milwaukee grinders are almost always cordless. A cordless model is a good thing since this will give you better access to move around with and make cutting or grinding in smaller spaces a breeze. Not all users prefer a cordless model, so keep that in mind with this brand.

How To Use a Milwaukee Angle Grinder

Using a Milwaukee grinding tool is not much different from other standard models with the exception that these cordless models will allow much more maneuverability since there is no cord to keep track of. Follow these steps when using your new Milwaukee grinder:

  • If your angle grinder comes with a guard – use it!
  • Ensure the blades are spinning away from you when you are using the grinder
  • Ensure the workpieces are clamped or secured wherever possible
  • Be sure to keep in mind the life of the battery before using

There are no special tips to keep in mind in terms of using the angle grinder. Battery-powered grinders will have a decreasing run time than the run time you would normally get from a corded model, just keep that in mind.

Frequently Asked Questions

What Size Arbor Does a Milwaukee Angle Grinder Have?

Milwaukee angle grinders have an industry-standard 5/8 diameter and 11 thread per inch arbor size. The smaller Milwaukee angle grinders will have a smaller arbor size, therefore, be aware of the different spindle functions that may come with some of the smaller sized Milwaukee grinders.

How to Change Wire Wheel on a Milwaukee Angle Grinder?

To prevent increased vibration or failure of a Milwaukee wire wheel, be sure to change a wire wheel carefully and with the following steps in mind:

  • If the wire wheel is already threaded to fit onto the arbor, simply twist the wheel in place until it is tight and locked into place on the grinding shaft.
  • Most Milwaukee M18 models will need to have the wire wheel attached to the arbor with a wrench or tool, which will turn whatever device you are using in the opposite direction and the drive belt will loosen with enough momentum, which will allow for easy attachment of a wire wheel

For a cordless Milwaukee angle grinder, always remove the battery before you begin to handle the disc. This can be easy to forget since you are not dealing with an electric tool.

How to Remove Battery Milwaukee 18v Angle Grinder?

Removing the battery on a Milwaukee 18v angle grinder is simple and consists of pushing in the release buttons to pull the battery pack away from the tool. Always make sure the switch is turned off before changing and inserting a new battery.

To insert a battery, slide the pack into the body of the tool. Make sure it latches securely into place.

Which Battery for Milwaukee Angle Grinder?

Most of the batteries for Milwaukee angle grinders give off an incredibly high output which is also long-lasting. For example, the REDLITHIUM XC 5.0 battery package provides superior pack construction, electronics, and performance to deliver 2 times more run-time and more work over pack life.

This is the standard battery for most of the M18 models, which is compatible with the M18 FUEL 4 1/2-inch models, or any model that needs a long-lasting battery that runs cooler than standard batteries.

How Long Will Milwaukee Battery Last on an Angle Grinder?

The M18 Fuel models can see performance variants typically last as long as 3 years, although most models not in the M18 Fuel category will typically last as long as 2 years. The REDLITHIUM XC 5.0, which is the standard battery in most of the M18 Fuel models will typically last between 2-3 years based on how much you use the grinder.

How to Replace the Case on Milwaukee Angle Grinder?

The gear case is the support system of a grinding tool. This case can become worn down over time, therefore, replacing the angle grinder case may be necessary at some point.

Remove the guard and the side handle first, and then proceed to unscrew the spindle assembly and then remove the gear housing unit from the motor. After disassembly, simply retrace these steps in reverse to attach a new case or the old case once any repairs have been made.

Final Thoughts

These 8 models (see on Amazon) represent some of the finest examples of this brand, and the features that come with Milwaukee grinders are unique and convenient. From the safety of the paddle switch system to the efficiency of the batteries, this brand is sure to make your grinding and cutting procedures simpler and precise, without the need of worrying about the limitations of an electrical cord.

Ben Jones

When it comes to selecting the right tool for the job there are some important factors that you have to consider. I hope by sharing some of my knowledge I'll be able to educate you on a range of grinders so you can get the job done.

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