Best Power Grinders of 2025

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Power grinders are a versatile and essential tool for any DIY enthusiast or professional tradesperson. These powerful machines use abrasive discs or wheels to grind, sand, and polish a wide range of materials, including metal, wood, and concrete. They are available in a variety of sizes and styles, from handheld models to large, industrial-grade machines. With their ability to quickly and efficiently remove material, power grinders are an essential tool for any project that requires precision and accuracy. Whether you're working on a home renovation project or a large-scale construction job, a power grinder can help you get the job done quickly and effectively.
At a Glance: Our Top Picks
Top 10 Power Grinders
Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder
The Milwaukee 2880-20 M18 FUEL Brushless Lithium-Ion 4-1/2 in. / 5 in. Cordless Small Angle Grinder is a powerful and versatile tool designed for comfort and ease-of-use. It features a Paddle Switch Design for increased comfort and ease-of-use when operating in various positions, a Tool-Free Guard Adjustment for faster guard installations and adjustments, and a Tool-Free Accessory Changes with Integrated FIXTEC Nut Technology. It also has an Electronic Clutch for kickback protection and a 5/8 in. - 11 Spindle for use with common grinding accessories.
DEWALT 20V MAX* Angle Grinder Tool
The DEWALT 20V MAX* Angle Grinder Tool is a powerful and reliable tool for grinding and cutting metal. It features a brushless motor that requires no brush changes, a kickback brake that engages when a pinch, stall, or bind-up event is sensed, and an E-Switch Protection that requires two actions to activate the tool. With its lightweight design and long-lasting battery, this angle grinder is perfect for any job.
DEWALT Angle Grinder with Paddle Switch
The DEWALT Angle Grinder with Paddle Switch is a powerful tool that provides the best power to weight/size ratio available. Its Dust Ejection System ensures durability by ejecting damaging dust and debris particles that enter the metal grinder. The oversized brushes provide 2 times brush life over the previous model, and the large spiral bevel gear provides long transmission life. The One-Touch Guard allows for 360 degree rotation of the guard with a single action, and the Quick-Change Wheel Release allows tool free wheel removal without the need for a wrench. The uniquely small gripping surface in this power class allows for the best comfort available in this class.
PORTER-CABLE PC750AG Angle Grinder
The PORTER-CABLE PC750AG Angle Grinder is a powerful and durable tool with a 7.5-amp motor that can power through jobsite tasks with ease. It has a cast metal gear housing for increased durability and longevity, and a 3-position adjustable side handle for greater control. The spindle lock feature allows for single wrench bit changes, and the soft grip handle improves user comfort and control.
DEWALT 20V MAX* XR Angle Grinder
The DEWALT 20V MAX* XR Angle Grinder is an excellent addition to your toolset, with its Brushless motor that requires no brush changes and offers a long motor life. It is equipped with Kickback Brake which engages with maximum force to stop the wheel when a pinch, stall, or bind-up is detected. This grinder also has the Power Loss Reset feature, which prevents accidental restarts following a power disruption when the tool is left in the "on" position. Overall, it is a versatile tool that is perfect for both DIY enthusiasts and professionals alike.
Milwaukee M12 FUEL Right Angle Die Grinder
The MILWAUKEE 1/4" M12 FUEL Right Angle Die Grinder has a cordless design that provides up to .3 HP performance, making it the first cordless right angle die grinder that delivers the performance and size and speed professional service mechanics demand. This die grinder is equipped with Milwaukee POWERSTATE Brushless Motor Technology that delivers 20% more power than pneumatic competition. With 4-mode RPM control and best-in-class size, it is easy to fit in tight spaces and offers greater mobility and access. It also provides optimum performance with 2" accessories.
DEWALT 20V MAX* Cordless Die Grinder
The DEWALT 20V MAX* Cordless Die Grinder is an efficient and versatile tool for grinding applications. With a brushless motor, it delivers both efficient performance and long runtime. The die grinder boasts up to 25,000 RPM with a variable speed trigger, allowing for precision control on a range of grinding applications. The dual-position rocker switch provides flexibility in handle grasping, while LEDs at the nose illuminate dark work areas. Plus, it uses the same battery and charger as other DEWALT 20V MAX* tools, making it a convenient addition to your tool collection.
DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder
The DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder is a powerful tool that offers up to 54% more power when paired with FLEXVOLT batteries. It features a Kickback Brake that engages with maximum force to quickly stop the wheel and shut off the grinder when a bind-up occurs, and an E-CLUTCH that shuts down the motor in under a tenth of a second when a pinch/stall is detected. It is compatible with all DEWALT 20V MAX* and FLEXVOLT Batteries, and is Tool Connect Chip Ready with a pocket that accepts Tool Connect Chip DCE042.
DongCheng Angle Grinder 4-1/2 inch 6.7-Amp Paddle Switch Cut off Tool
The DongCheng Angle Grinder is a powerful and efficient tool for cutting and grinding wood, metal, and rust removal. Its large paddle switch design ensures safe and easy operation in various positions. The copper wire motor brings 1.5X stronger power and high efficiency, making grinding tasks easier without the risk of burning the tool. With new upgraded bevel helical gears, this angle grinder offers reduced noise and vibration, ensuring long-lasting durability. The integrated spindle lock allows for quick and simple abrasive wheel replacement, while the longer power cord provides a wider working space. The stereoscopic air vent design ensures low noise, smooth ventilation, and fast heat dissipation, improving the grinder's lifespan. The ergonomic design with a compact size and ultra-slim body makes it lighter and more comfortable to use. The safety guard and auxiliary handle enhance stability during work. With high compatibility, this angle grinder accepts a wide range of 4-1/2-inch accessories, making it a versatile tool for various applications. The package includes the angle grinder, grinding wheels, flap discs, cutting discs, auxiliary handle, flange kit, safety guard, spanner wrench, auto-stop carbon brush, warranty card, and user manual.
DEWALT Angle Grinder with One-Touch Guard
The DEWALT Angle Grinder is designed with a 7 amp AC/DC, 12,000 rpm motor, enabling faster material removal and higher overload protection. The One-Touch guard eliminates the need for a tool to adjust the guard location, while the hex wrench replaces the spanner wrench. The Quick-Change wheel release allows tool-free wheel removal without the need for a wrench. The slim, ergonomic body design provides increased comfort in extended use applications, and the 2-position removable side handle provides increased comfort and control. This product runs off of AC/DC power.
Frequently Asked Questions (FAQs)
1. What is a power grinder used for?
A power grinder, specifically an angle grinder, is a handheld tool used for various metal fabrication tasks. It can be used for cutting, grinding, deburring, finishing, and polishing. Angle grinders are powered by electricity, either through a cord or a battery.
2. Why are 9 inch grinders banned?
9 inch grinders have been banned from many work sites due to the increased risk of injury. Workers often remove guards or use incorrect discs, which significantly raises the risk level. This has resulted in catastrophic injuries and fatalities, leading to the ban of 9 inch grinders in certain workplaces.
3. What are the top 3 uses of a grinder?
Grinders, particularly angle grinders, have three primary functions: cutting, grinding, and polishing. They operate at high speeds, making cutting tasks easier and providing better precision compared to stationary grinders. These handheld tools are versatile and commonly used for various metalworking applications.
4. Does OSHA require guards on grinders?
Yes, according to OSHA regulations, portable grinding tools must be equipped with safety guards. These guards serve to protect workers not only from the moving wheel surface but also from flying fragments in the event of wheel breakage.
5. Will a 9 inch grinder cut through a brick?
Yes, a 9 inch angle grinder is capable of cutting through larger-sized bricks. However, smaller sizes of bricks can be cut using 4-inch or 6-inch grinders. The size of the grinder disc determines its cutting capacity.
6. What are the 4 types of grinding machine?
There are five main categories of grinding machines: surface grinders, cylindrical grinders, centerless grinders, internal grinders, and specials. Surface grinders are used to produce flat, angular, and irregular surfaces.
During our power grinder research, we found 24 power grinder products and shortlisted 10 quality products. We collected and analyzed 145,837 customer reviews through our big data system to write the power grinders list. We found that most customers choose power grinders with an average price of $105.72.
The power grinders are available for purchase. We have researched hundreds of brands and picked the top brands of power grinders, including Milwaukee, DEWALT, PORTER-CABLE, Dong Cheng. The seller of top 1 product has received honest feedback from 104 consumers with an average rating of 4.5.

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.
Power Grinders Comparison Table
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Brand | Milwaukee | DEWALT | DEWALT | PORTER-CABLE | DEWALT | Milwaukee | DEWALT | DEWALT | Dong Cheng | DEWALT |
Power Source | Battery Powered | Battery Powered | Corded Electric | Corded Electric | Battery Powered | Cordless | Cordless | Battery Powered | Corded Electric | Corded Electric |
Material | Metal | Plastic, Metal | Plastic, Metal | Metal | Blend | Metal | - | Blend | Metal | Blend |
Style | Hammerdrill | 20V Brushless 4-1/2" Grinder (Tool Only) | Angle Grinder only | Adjustable Side,Three-position Side | Classic | Rpm | - | Angled | Long-type Paddle Switch & Standard Guard/ 6.7A | Angle Grinder Only |
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