DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, vs Makita 9557PB 4-1/2" Paddle Switch Angle Grinder
Updated July 2026 — DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, wins on power and safety, Makita 9557PB 4-1/2" Paddle Switch Angle Grinder wins on price and rpm.
The DEWALT FLEXVOLT ADVANTAGE offers superior power and safety features, while the Makita provides a more affordable and lightweight option.
Why DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, is better
Power
DEWALT offers up to 54% more power with FLEXVOLT batteries.
Safety
DEWALT features advanced safety systems like Kickback Brake.
Brand Reputation
DEWALT has a higher bestseller rank.
Why Makita 9557PB 4-1/2" Paddle Switch Angle Grinder is better
Price
Makita is $45.50 cheaper.
Weight
Makita weighs only 4.5 lbs.
RPM
Makita has a higher no-load speed of 11,000 RPM.
Overall score
Specifications
| Spec | DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder, | Makita 9557PB 4-1/2" Paddle Switch Angle Grinder |
|---|---|---|
| Motor Power | 20V MAX* | 7.5 AMP |
| No-Load Speed | 9,000 RPM | 11,000 RPM |
| Weight | 5.6 lbs | 4.5 lbs |
| Safety Features | Kickback Brake, E-CLUTCH | Lock-on/off |
| Warranty | Not specified | 1-year limited |
Dimension comparison
Overview of the DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder
The DEWALT FLEXVOLT ADVANTAGE 20V MAX* Angle Grinder is priced at $144.50, making it a premium choice in the angle grinder market. This tool offers significant power enhancements when paired with FLEXVOLT batteries, boasting up to 54% more power. With a brushless motor delivering 1,550 max watts out and a no-load speed of up to 9,000 RPM, this grinder is designed for heavy-duty tasks. The Kickback Brake and E-CLUTCH systems provide added safety features, ensuring that the grinder stops immediately in case of a bind-up.
Overview of the Makita 9557PB 4-1/2" Paddle Switch Angle Grinder
In contrast, the Makita 9557PB is priced at $99.00, making it about 31% cheaper than the DEWALT model. This angle grinder features a powerful 7.5 AMP motor that delivers a no-load speed of 11,000 RPM, providing high output power for various grinding applications. The grinder is designed for comfort as well, weighing only 4.5 lbs and featuring a small 2-1/2" diameter barrel grip. The labyrinth construction seals the motor and bearings from contamination, extending the tool's lifespan and durability.
Power and Performance Comparison
When it comes to power and performance, the DEWALT grinder pulls ahead with its advanced FLEXVOLT technology. It offers up to 54% more power when used with compatible batteries, making it ideal for demanding tasks. The brushless motor's output of 1,550 max watts is impressive, but it operates at a lower RPM than the Makita. The Makita boasts a no-load speed of 11,000 RPM, allowing for faster grinding. However, its 7.5 AMP motor does not match the wattage output of the DEWALT. Therefore, while the DEWALT may excel in power under specific conditions, the Makita provides a higher RPM for quicker job completion.
Safety Features
Safety is a crucial aspect when using power tools, and both grinders come equipped with features that enhance user safety. The DEWALT FLEXVOLT includes a Kickback Brake that engages with maximum force to stop the wheel quickly, and an E-CLUTCH system that shuts down the motor within a tenth of a second during a pinch or stall. On the other hand, the Makita includes a lock-on/off feature for continuous operation, allowing for ease of use during prolonged tasks. Each grinder has its strengths, but the advanced safety measures of the DEWALT may give it an edge for users concerned about safety during heavy usage.
Design and Comfort
In terms of design, the Makita 9557PB is more compact and lightweight, weighing only 4.5 lbs and featuring a small circumference barrel grip for improved handling. This design makes it easier to maneuver during extended use, especially in tight spaces. The DEWALT, while slightly heavier, also offers a comfortable grip but lacks the same compactness of the Makita. The design choices of both grinders cater to different user preferences, with the Makita appealing to those who prioritize lightweight tools, while the DEWALT focuses on power and safety features.
Included Accessories and Warranty
The Makita 9557PB comes complete with several accessories, including a grinding wheel, wrench, side handle, flange, and wheel guard, making it a comprehensive package for users. It also offers a 1-year limited warranty. On the contrary, the DEWALT FLEXVOLT is sold as a tool only, requiring users to purchase batteries and a charger separately, which can add to the overall cost. However, the DEWALT's warranty details are not specified, which may be a consideration for potential buyers.
Brand Reputation and Sales Rank
Both brands have established reputations in the power tool market. The DEWALT FLEXVOLT has a bestseller rank of 14,755, indicating a solid presence among consumers. The Makita 9557PB, while still popular, has a higher sales rank of 43,958, suggesting that it may not be as widely favored as the DEWALT. Brand reputation can play a significant role in purchasing decisions, with DEWALT often recognized for its high-quality, durable products.
Which should you buy?
Choosing between the DEWALT FLEXVOLT ADVANTAGE and the Makita 9557PB ultimately depends on your specific needs and preferences. If you're looking for a powerful grinder with advanced safety features and are willing to invest more upfront, the DEWALT is an excellent choice. However, if you prioritize lightweight design, higher RPM for quicker grinding, and a lower price point, the Makita may be the better option. Both grinders have their strengths, but your decision should reflect the tasks you plan to undertake and your budget.

