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DEWALT 20V MAX* XR Brushless Cordless 4-1/2 in. - vs Milwaukee Electric - M18 Fuel. 4-1/2 / 5 Variable

Updated July 2026 — DEWALT 20V MAX* XR Brushless Cordless 4-1/2 in. - wins on power and speed, Milwaukee Electric - M18 Fuel. 4-1/2 / 5 Variable wins on price and comfort.

The DEWALT 20V MAX XR offers superior power and features, making it the better choice for demanding tasks, while the Milwaukee M18 Fuel is more budget-friendly.

Why DEWALT 20V MAX* XR Brushless Cordless 4-1/2 in. - is better

Power

DEWALT has a higher no-load speed of 9,000 RPM.

Safety

DEWALT features an anti-rotation system.

Performance

DEWALT delivers up to 1,640 MWO.

Why Milwaukee Electric - M18 Fuel. 4-1/2 / 5 Variable is better

Price

Milwaukee is approximately 27% cheaper.

User Comfort

Milwaukee's slide switch reduces user fatigue.

Convenience

Milwaukee offers tool-free accessory changes.

Overall score

DEWALT 20V MAX* XR Brushless Cordless 4-1/2 in. -
85
Milwaukee Electric - M18 Fuel. 4-1/2 / 5 Variable
75

Specifications

SpecDEWALT 20V MAX* XR Brushless Cordless 4-1/2 in. -Milwaukee Electric - M18 Fuel. 4-1/2 / 5 Variable
Max RPM90008500
Weight5.6 lbs5.2 lbs
Motor TypeBrushlessBrushless
Speed SettingsVariable5 Settings
Braking SystemNoYes

Dimension comparison

DEWALT 20V MAX* XR Brushless Cordless 4-1/2 in. -Milwaukee Electric - M18 Fuel. 4-1/2 / 5 Variable

Overview of the DEWALT 20V MAX XR and Milwaukee M18 Fuel

The DEWALT 20V MAX XR and Milwaukee M18 Fuel are both formidable contenders in the cordless angle grinder market. The DEWALT model is priced at $221.71, while the Milwaukee model is about 27% cheaper at $162.06. Both tools are designed for heavy-duty applications, but they offer different features that cater to varying user needs.

Power and Performance

When it comes to power, the DEWALT 20V MAX XR outshines its competitor with a brushless motor that delivers up to 1,640 MWO and a no-load speed of 9,000 RPM. This robust performance makes it ideal for tackling tough jobs. In contrast, the Milwaukee M18 Fuel offers variable speed settings with a range between 3,500 RPM and 8,500 RPM. While it provides good control, its maximum speed and performance output are lower than those of the DEWALT grinder.

Speed Control Features

The DEWALT 20V MAX XR allows users to optimize their work with variable speed functionality, enabling wheel speed adjustments based on the material being worked on. This feature helps ensure optimal performance across various applications. The Milwaukee M18 Fuel also boasts variable speed control with five settings, enhancing user control. However, its maximum RPM is notably lower than that of the DEWALT, which may limit its performance in tougher materials.

Safety Features

Safety is paramount when using power tools, and each grinder incorporates unique safety features. The DEWALT 20V MAX XR is equipped with an anti-rotation system that shuts the tool down if it detects excessive rotational motion, ensuring greater safety during operation. On the other hand, the Milwaukee M18 Fuel includes a braking feature that stops most wheels in less than two seconds, significantly reducing the risk of accidents. Both tools offer excellent safety measures, but they approach it from different angles.

User Comfort

User comfort is a critical aspect of any power tool, and both grinders are designed with usability in mind. The DEWALT model features a paddle switch for easy control, while Milwaukee's model includes a slide switch designed to reduce user fatigue during extended use. Additionally, the Milwaukee's tool-free access for guard adjustments and accessory changes enhances convenience and efficiency. Both designs offer substantial comfort, but the Milwaukee's specific features cater to prolonged usage.

Versatility and Applications

The DEWALT 20V MAX XR is marketed as part of a powerful line of 20V Max* angle grinders, making it suitable for a wide range of applications. Its ability to adjust wheel speed allows it to excel in various materials, from metal to masonry. The Milwaukee M18 Fuel also claims versatility, but its lower RPM range may limit its effectiveness on more demanding tasks. Both tools serve well in diverse situations, but the DEWALT's higher performance metrics may give it an edge.

Portability and Convenience

Both the DEWALT 20V MAX XR and Milwaukee M18 Fuel are cordless, enhancing their portability. However, the DEWALT model requires a compatible battery and charger, which are sold separately, potentially adding to the overall cost. The Milwaukee model is also a bare tool, emphasizing that users will need to invest in a battery and charger if they do not already own them. While both tools are designed for convenience, the initial investment in the DEWALT may be higher due to the separate battery purchase requirement.

Price Comparison

Price plays a crucial role in the decision-making process. The DEWALT 20V MAX XR retails for $221.71, while the Milwaukee M18 Fuel is priced at $162.06, making it approximately 27% more affordable. This significant price difference could sway budget-conscious buyers towards the Milwaukee model. However, potential buyers should weigh the price against the performance and features offered by each tool to determine which aligns better with their needs.

Which should you buy?

Ultimately, the choice between the DEWALT 20V MAX XR and Milwaukee M18 Fuel depends on your specific needs and budget. If you require a powerful, high-performance grinder for demanding tasks, the DEWALT model may be worth the investment. Its superior speed and safety features make it ideal for professionals tackling tough jobs. Conversely, if you prioritize affordability and comfort for less intensive tasks, the Milwaukee grinder presents a compelling option with its lower price and user-friendly design. Consider your application and budget to make an informed decision.