Cordless Angle Grinder Compatible with DeWalt 20V Max Battery - 4-1/2

In this review of the Cordless Angle Grinder the bottom line is clear: this compact, lightweight grinder is best for DeWalt 20V Max battery owners who need a portable tool for cutting, grinding and polishing without a cord. The review finds the tool delivers strong performance for its size thanks to an 8,500RPM brushless motor and three-speed control, and it stands out for ergonomic touches like a rubberized handle and reversible side grip. Note that the package is tool-only, so buyers must already own or separately purchase a DeWalt 20V Max battery.

Key Features

• DeWalt 20V Max compatibility: Works with common DeWalt 20V Max batteries so users with that ecosystem get instant power without changing chargers.
• Brushless motor with 3 speed control: Up to 8,500RPM no-load speed and three preset speeds let you match torque and speed to metal cutting, wood polishing, or rust removal tasks.
• Compact, lightweight design: At about 3.4lbs (tool only) the grinder is easy to hold for extended periods, reducing hand fatigue during detail work.
• Ergonomic handling: Left and right side handle options and a rubberized grip improve control and comfort for both left- and right-handed users.
• Safe and quick wheel changes: Spindle lock plus the included pin wrench make disc swaps straightforward and safer on the jobsite.
• Versatile cutting and finishing: The 4-1/2 in blade size suits cutting thin steel, polishing wood, removing rust, and light metal grinding tasks.

Who It's For

This grinder is aimed at DIYers, hobbyists and contractors who already own DeWalt 20V Max batteries and want a compact, cordless angle grinder for intermittent cutting, grinding and polishing tasks. Its three-speed brushless motor gives enough control for small to medium projects without the weight of larger pro-grade grinders.

Those who need heavy continuous-duty performance, integrated battery, or a larger 5 in+ disc for heavy demolition should look at full-size corded or dedicated high-capacity cordless models instead; this unit is optimized for portability and convenience rather than industrial nonstop use.

Pros & Cons

Pros

• Brushless motor and up to 8,500RPM give efficient cutting and longer motor life.
• Compatible with DeWalt 20V Max batteries so you can use existing batteries and chargers.
• Lightweight at roughly 3.4lbs and ergonomic grips reduce fatigue during detail work.
• Includes cutting wheel and pin wrench for immediate use out of the box.

Cons

• Battery is not included, so cost and convenience depend on already owning a compatible battery.
• Smaller 4-1/2 in disc limits efficiency on larger, heavy-duty cutting tasks compared with bigger grinders.

Specifications

Voltage	20V
Disc size	4-1/2 in (115mm)
No-load speed	4,200 / 6,500 / 8,500RPM
Thread size	M14
Weight	3.4lbs (tool only)
Included accessories	Cutting wheel, adjustable pin wrench, user manual

Our Verdict

The Cordless Angle Grinder is a practical, well-rounded choice for users already invested in the DeWalt 20V Max battery platform who need a portable 4-1/2 in grinder for cutting, polishing and light grinding. It balances power, control and comfort at a value for small jobsite tasks and DIY projects, though buyers should budget for batteries if they do not already have them.

Frequently Asked Questions

What battery does it fit?
It fits DeWalt 20V Max batteries; the tool is sold without a battery included.

What is the thread size for discs?
The thread size for mounting discs is M14, a common size for angle grinder discs.

How heavy is the tool?
The grinder weighs approximately 3.4lbs (tool only), making it easy to handle for longer periods.