7 Best Die Grinders [Evaluated 2022]

7 Best Die Grinders [Evaluated 2022]

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die grinder

A die grinder is an essential tool everyone must have in their toolbox, whether a professional tradesperson or a homeowner. This versatile tool can sand, cut, brush, and saw. Unlike general grinders, die grinders get their cutting strength through high speed rather than physical force.

Die grinders are popular because they are faster and can accomplish detailed work, and because they can be powered by electricity or batteries.

With various options available, finding the best die grinder can be a daunting task. Our goal is to make your battle easier. We’ll advise you on things to think about before making that purchase. We’ll also explain the distinctions between a die grinder and a cut-off tool. Let’s dive in.

What is a Die Grinder Used For?

A die grinder is an all-around tool used for the following tasks:

  • Varnishing Metal. Use a die grinder to varnish stainless steel metals and make them look great again. 
  • Leveling Surfaces. Die grinders can be used to give your finished project a professional and smooth look.
  • Filing Blades. Die grinders sharpen blades like hatchets, axes, and knives.
  • Removing Rust. Die grinders help remove old and stubborn rust.

Things to Consider Before Buying a Die Grinder

Before purchasing a die grinder, consider the following essential factors:

Motor Capacity: The task you will use the die grinder for will determine its motor capacity. 

Power Source: If you work in remote areas or locations where power outages are common, the ideal die grinder would be a battery-powered one. A pneumatic die grinder is your best shot if your job site uses a quality air compressor. You can also go for electric die grinders.

Temperature Loss: Choose a die grinder with high horsepower.  Die grinders get hot quickly, especially if lacking horsepower.  

RPM:: Another essential consideration for any die grinder is the speed (RPM). The greater the RPM, the faster it lets you finish your tasks. 

Safety: Look out for distinctive features like child safety locks. Also, the flying debris and heat from die grinders could cause injury to the users, so choose a tool that fits your experience level.

Now that you have an idea of what to look for in a die grinder let’s explore some of the best die grinders in the market currently. We put this list together based on the latest customer sentiment data and recommendations from our community of metallurgists:

1. Milwaukee 2485-20

Milwaukee 2485-20 M12 FUEL Right Angle Die Grinder (Tool Only)

This right-angle die grinder comes in red and black and is the first cordless-powered model. The Milwaukee 2485-20 die grinder is ergonomically designed and fitted with brushless motor technology.

It’s also 20% more powerful than other pneumatic grinders. It’s popular because of its speed, performance, and mobility, particularly in confined spaces. Its horsepower (HP) is strong, and the engine rarely breaks down regardless of how hard you press. It also allows users to vary the speed. This is a versatile tool.

Its weight allows users to carry it without hassle or tiredness. This die grinder is ideal for you if you work in remote areas or reside in locations with unstable electricity.

If you are looking for speed, power, performance, versatility, value for your money, and a quality product, we recommend the Milwaukee 2485-20.

Highlighted Features:

  • Style: Rpm 
  • Weight: 1.2 Pounds 
  • Power source: Cordless 
  • Voltage: 12 Volts 
  • Size: 1/4″ 
  • Special features: Brushless 
  • Product Dimensions: 8.3 x 5 x 3 inches 

The pros include:

  • Meets professional demands of speed, size, and performance
  • Has a brushless motor technology
  • Good accessibility and mobility
  • Ergonomic style
  • Affordable
  • Quality 
  • Variable speed
  • 0.3 HP motor and 25,000 RPM
  • 5-year warranty

The cons include:

  • Overheats fast
  • You must assemble the collet according to the instructions. Otherwise, the shaft of the grinding ring will get stuck, and it will be hard separating it from the collet
  • The safety switch is challenging to use
  • It’s expensive
Milwaukee 2485-20 M12 FUEL Right Angle Die Grinder (Tool Only)
  • The MILWAUKEE 1/4" M12 FUEL Right Angle Die Grinder is the first cordless right angle die grinder that delivers the performance and size and speed professional service mechanics demand.
  • The die grinder delivers 20% more power than pneumatic competition and features the Milwaukee POWERSTATE Brushless Motor Technology.
  • The cordless die grinder provides users with up to .3 HP performance, best-in-class size to help fit in tight places, and offers users greater mobility and access.
  • 20% More Power Than Pneumatic0.3 HP Motor Output4-MODE RPM CONTROLGreater Mobility and Access
  • Optimum performance with 2" AccessoriesPOWERSTATE Brushless Motor Technology

2. DEWALT 20V DCG426B

DEWALT 20V MAX* Die Grinder, Variable Speed, 1-1/2-Inch, Tool Only (DCG426B)

DEWALT is a known brand name for producing quality tools. The DEWALT 20V DCG426B is a black, versatile grinder that is easy to use. As the name suggests, it uses a powerful 20 volts. It is available in battery-powered and electric models. It produces 500 MWO and can handle grinding rings of up to 33mm in diameter. 

It’s ergonomically designed and fitted with a brushless motor powered by the same battery. There’s an LED at the tip of the grinder, making it suitable for working at dark job sites. It comes with a rocker switch in a dual position allowing diverse grasping options. 

The grinder is lightweight and doesn’t require a power cord.  This makes it great for use on remote job sites. It’s not very loud like other grinders despite the many tasks it can accomplish.

If you are a welder-fabricator looking for a tool that can smooth the rough edges inside cut pipes and do oxidation in spaces where it will be hard for ordinary grinders to get to, get yourself the DEWALT 20V. It will get the job done.

Highlighted Features:

  • Voltage: 20 Volts 
  • Power source: Battery Powered 
  • Weight: 3.4 Pounds 
  • Style: Hammer drill 
  • Size: Large 
  • Material: Blend
  • Product Dimension: 17 x 10 x 5 inches 

The pros are:

  • Brushless motor technology
  • Adjustable speed
  • Diverse grinding tasks
  • 25,000 RPM
  • 3-year warranty
  • Value for money
  • LED lights
  • Powerful 20-volts
  • Durable motor life

The cons include:

  • Battery not included in the package
  • A bit bulky for a grinder
Sale
DEWALT 20V MAX* Die Grinder, Variable Speed, 1-1/2-Inch, Tool Only (DCG426B)
  • DEWALT built brushless motor for efficient performance and runtime of the die grinder
  • The electric die grinder has up to 25,000 RPM with variable speed trigger
  • Illuminate dark work areas with LEDs at the nose of the DEWALT die grinder
  • Multiple handle grasping options with dual-position rocker switch

3. Ingersoll Rand 301B

Ingersoll Rand 301B Air Die Grinder – 1/4', Black & 3107G Air Die Grinder Edge Series – 1/4', Heavy Duty, Straight, Ergonomic Grip, Ball Bearing Construction, Lightweight Tool, Black

This bundle is a two-set tool consisting of a 301B air die grinder ¼ right angle and a 3107G ¼ heavy-duty air die grinder. 

The 3107G may be used anywhere and is extremely portable at one pound in weight.  It is powered by compressed air and contains ⅓ horsepower, a ¼-inch collet, a self-locking throttle, and a rear exhaust. Don’t let its tiny size fool you, as it runs on 27,000 RPM and can withstand the toughest tasks.

It’s ergonomically designed with contoured grips to give you comfort while working with torque accuracy. It may be used for cutting, polishing, and grinding. And it has undergone rigorous performance tests.

The 310B has aluminum housing that is lightweight and durable. It contains ball bearings to keep away the heat and reduce friction. This guarantees a long lifespan.

It’s fitted with a self-locking throttle, ensuring your safety. It delivers quality power at 2.5 horsepower and 21,000 RPM at just one pound.

Both sets are ideal for confined spaces and automotive engineering job sites.

Highlighted Features:

  • Style: 301B – Air Angle Die Grinder + Grinder, Black 

The pros are:

  • Self-locking throttle
  • Aluminum housing
  • Front exhaust
  • 1-year warranty
  • Affordable
  • Ergonomic design with torque accuracy
  • Contoured grip for comfort
  • Durable ball bearing for less friction, balance, and longevity
  • Sturdy

The cons are:

  • It is a pneumatic die grinder that needs an air compressor to function
  • Average quality
  • Collet is hard to loosen and tighten
  • No speed control
Ingersoll Rand 301B Air Die Grinder – 1/4", Black & 3107G Air Die Grinder Edge Series – 1/4", Heavy Duty, Straight, Ergonomic Grip, Ball Bearing Construction, Lightweight Tool, Black
  • Product 1: SMALL + LIGHT: Ingersoll Rand Air Die Grinder 301B has a light but sturdy design and weighs only 1.02 lbs; It provides easy operation and better access to tight spots
  • Product 1: 0.25 HP MOTOR: It is powered by compressed air, not electric, and comes equipped with a 0.25 horsepower motor, a 1/4-inch collet, and a self-locking throttle for extra safety. With 21,000 RPM, it will power through difficult jobs
  • Product 1: BALL BEARING CONSTRUCTION: Durable ball-bearing construction offers improved balance, reduces vibration, and ensures a longer product life
  • Product 1: ALUMINUM HOUSING: It has a strong aluminum housing that withstands the toughest operating conditions, and the front exhaust keeps your work surface clean
  • Product 2: COMPACT + LIGHT: Ingersoll Rand Air Die Grinder 3107G Edge Series is light but sturdy; At only 1 lb, it has a ball-bearing construction and is exceptionally rugged, compact, and lightweight

4. Ingersoll Rand 3101G

Ingersoll Rand 3101G Air Die Grinder Edge Series – 1/4', Heavy Duty, Right Angle, Ergonomic Grip, Ball Bearing Construction, Lightweight Tool, Black

With over 100 years in the industry, Ingersoll has been leading industrial innovation. From manufacturing air compressor systems to power tools, the company produces durable, high-performance, reliable, and quality products. Ingersoll considers sustainability and a safe and clean environment in all aspects of its business.

Ingersoll Rand is becoming a popular tool going by its user rating. The Ingersoll Rand 301G is compact and lightweight with a ball-bearing construction. It is powered by compressed air and contains a rear exhaust, a ¼-inch collet, a self-locking throttle, and a ⅓ horsepower. 

At 20,000 RPM, it can withstand the toughest tasks. It’s fitted with a grease-filling hole for feeding lubricants. This helps with prolonging the tool’s lifespan if done regularly.

It is ergonomically constructed with torque accuracy and a contoured grip giving the user comfort and control. It’s used for porting, deburring, polishing, grinding, and weld breaking.

If you are looking for an ideal power tool for welding, polishing, and hard-to-reach spaces, we recommend the Ingersoll Rand 301G.

Highlighted Features:

  • Style: Right Angle 
  • Power source: Air Powered 
  • Weight: 1.3 pounds
  • Horsepower: 0.33 hp 
  • Special features: Lightweight 

The pros are:

  • Award-winning ergonomic design
  • 1-year warranty
  • Lightweight and sturdy
  • The angled shape is perfect for maneuvering around confined and hard-to-reach spaces
  • High RPM
  • Heavy-duty wrenches

The cons are:

  • Over time, the top nut loosens
  • Stiff air control
Ingersoll Rand 3101G Air Die Grinder Edge Series – 1/4", Heavy Duty, Right Angle, Ergonomic Grip, Ball Bearing Construction, Lightweight Tool, Black
  • COMPACT + LIGHT: Ingersoll Rand Air Die Grinder 3101G Edge Series is light but sturdy; At only 1.3 lbs, it has a ball-bearing construction and is exceptionally rugged, compact, and lightweight
  • 1/3 HP MOTOR: It is powered by compressed air, not electric, and comes equipped with a 1/3-horsepower motor, a 1/4-inch collet, a rear exhaust, and a self-locking throttle. With 20,000 RPM, it will power through difficult jobs
  • LUBRICANT FEEDER: There is a grease fitting hole on top to easily and conveniently feed lubricants; Lubricating the angle gears on a regular basis can help increase the tool’s lifespan
  • APPLICATIONS: Use as a handheld power rotary tool for grinding,  porting, polishing, deburring, and weld breaking. The angled shape is best for confined and hard-to-reach places
  • ERGONOMIC DESIGN: Contoured grip gives greater comfort and control and its ergonomic design delivers exceptional torque precision, as well as increased productivity and safety

5. Milwaukee 2784-20

Milwaukee 2784-20 M18 FUEL 1/4' Die Grinder, Brushless (Tool Only)

Milwaukee is a brushless motor die grinder with an 18-volt battery system giving it a reliable performance. Because of the brushless motor technology, it makes less noise when in use. It comes in red, gray, or black colors.

It is fitted with an ¼-inch collet, carbide burrs of up to 3 flap wheels delivering 20,000 RPM. This grinder is the most durable among Milwaukee power tools because of its power and lasting battery life.

The outstanding feature of the Milwaukee 2884-20 die grinder is that it’s designed with the latest innovation in the industry. It’s crafted with an electronic intelligence mechanism allowing advanced communication between the tools and batteries. This results in high performance, productivity, and protection. In turn, this guarantees a longer lifespan.

Reviews and ratings from most users indicate that the tool isn’t only easy to use, but it accomplishes the tasks for which it was intended. They also praised it as they got value for their money.

If you are regularly working with cutting wheels, and hydraulic hoses and replacing cut off welded parts and you are looking for a powerful, durable, and reliable tool, then we recommend Milwaukee 2784-20.

Highlighted Features:

  • Style: Rpm 
  • Power source: M18 battery
  • Weight: 4 Pounds
  • Product Dimension: 3.8 x 16.4 x 4 inches 

The pros include:

  • 18-volt power rating
  • 20,000 RPM
  • Brushless motor
  • 5-year warranty

The cons include:

  • Expensive
  • Batteries not included in the package
  • No adjustable speed control
  • Not ideal for tight spaces because of the size
  • It’s heavy
Sale
Milwaukee 2784-20 M18 FUEL 1/4" Die Grinder, Brushless (Tool Only)
  • Milwaukee POWERSTATE Brushless Motor provides more power, more run-time, and longer life.
  • The Milwaukee REDLITHIUM Battery Pack is the most durable pack on the market delivering more run-time, power and longer battery life.
  • REDLINK PLUS Electronic Intelligence enables advanced communication between your batteries and tools, allowing for unmatched levels of performance, protection, and productivity.
  • 20,000 RPM brushless motor is designed to deliver corded performance while using carbide burrs, up to 3" flap wheels.
  • M18 REDLITHIUM XC5.0 battery pack (not included) delivers over 20 minutes of grinding.

6. Ingersoll Rand 301B

Ingersoll Rand 301B Air Die Grinder – 1/4', Right Angle, 21,000 RPM, Ball Bearing Construction, Safety Lock, Aluminum Housing, Lightweight Power Tool, Black

Ingersoll Rand is a household brand for power tools, which is why this company appears three times on our list. Their products can be trusted for quality, durability, and performance. The Ingersoll Rand 301B is one of the tools featured in the bundle (#2) above, and it is a solid choice on its own for those who wish to spend less and may not need as much versatility as the bundle offers. It is a pneumatically powered power tool designed with a powerful 0.25 horsepower motor with accurate gears. It delivers at 21,000 RPM.

It is made with strong aluminum housing for anti-shock and for enduring the toughest work environments. It’s also fitted with a durable ball bearing that aids with balance and friction and guarantees a long lifespan.

It’s fitted with a safety lock throttle to prevent accidents. The grinder is lightweight and small so it can be used in confined and hard-to-reach spaces.

It comes in one compact package with 2 wrenches and a 6mm collet. It is ideal for performing various tasks, including deburring, polishing, porting, grinding, and breaking sharp edges. And all these can be done effortlessly anywhere.

The Ingersoll Rand 301B comes highly recommended if your task involves routine fiberglass cutting or sanding discs where heavy pressure heavy cutting is not required.

Highlighted Features:

  • Power source: Pneumatic powered 
  • Special feature: Compact
  • Weight: 1.02 pounds 
  • Style: 301B – Air Angle Die Grinder 
  • Material: Aluminum 
  • Product Dimension: 5.27 x 1.34 x 2.91 inches

The pros are:

  • Powerful motor
  • Ball bearing construction and accurate machine steel gears for longevity
  • Strong aluminum housing
  • Safety lock throttle
  • Right angle makes it accessible in hard-to-reach spaces
  • Front exhaust
  • 1-year warranty

The cons are:

  • Sticky collet
  • Loses a lot of air in the front making the compressor run more than it should
Sale
Ingersoll Rand 301B Air Die Grinder – 1/4", Right Angle, 21,000 RPM, Ball Bearing Construction, Safety Lock, Aluminum Housing, Lightweight Power Tool, Black
  • Powerful motor with precision gearing offers 0.25 HP (0.19kW) at 21,000 rpm free speed
  • The 301B Grinder includes ball-bearing construction and precision-machined steel gears for elongated tool life.
  • Easy-to-use, integral safety-lock throttle lever prevents accidental start up.
  • Strong aluminum housing withstands tough operating conditions
  • The right angle of the 301B allows for easier access to hard-to-reach places.

7. Milwaukee 2486-20

Milwaukee 2486-20 M12 Fuel 1/4' Straight Die Grinder TOOL ONLY

Milwaukee 2486-20 is a cordless powered die grinder available in red and black. It weighs one pound and is ideal for mobility accessibility. The cordless power source is ideal for remote job sites or working environments with unstable power supplies.

This grinder is for you if you need to clean parts before doing repairs or work in your line of work. It will save you the time you use to drag around an air hose. This will leave you less tired and more productive. The Milwaukee 2486-20 is recommended as it will transform your working environment. We recommend Milwaukee 2486-20 because it will change the way you work.

Highlighted Features:

  • Power source: Cordless 
  • Size: 1/4″
  • Weight: 1.2 pounds 
  • Product Dimensions: 11 x 4 x 4 inches

The pros include:

  • Adjustable speed
  • Ideal for confined spaces

The cons are:

  • The battery needs to be changed often if used in rigorous commercial jobs
  • Gets hot quickly
  • Battery not included in the package

FAQ

Can a Die Grinder Cut Metal?

Absolutely. Die grinders can be used on anything, depending on your chosen attachment. You can also use a die grinder on wood, steel, aluminum, plastic, cast iron, and even body filler.

What is the Distinction Between a Die Grinder and a Cut-off Tool?

Although die grinders look similar to cut-off tools, they aren’t identical. Cut-off tools are designed with a guard and correct mounting flanges used specifically for cut-off wheels. However, die grinders are designed with spindle and chuck accessories like mounted points. 

The major differences between these tools are the following:

  • Functionality. Die grinders are created for polishing metal and grinding. In contrast, cut-off tools are created to sharpen and cut little pieces of metal. 
  • Look. Cut-off tools are fitted with guards to protect you from flying sparks. Die grinders have no guards.
  • Size. Cut-off tools are lighter and smaller than die grinders.

Conclusion

Die grinders are essential tools for homeowners and professional tradesmen. Depending on your work environment and the type of work you want to do, these best die grinders have your back. Let’s go grind.