
Craftsman CMCG400B
Score: 68/100
DeWalt DCG408B
Score: 88/100Rankings

The DEWALT DCG408B is a lightweight, cordless 4.5-inch angle grinder featuring a brushless motor and advanced safety features like a kickback brake. Its portability and modern features make it ideal for on-site work, though it requires a separate battery and has lower power than corded models. It is best suited for professionals who value mobility and safety.

The Craftsman V20 Angle Grinder offers a durable build with a cast metal gear housing and a brushless-equivalent motor, making it a reliable choice for the V20 ecosystem. However, its lower RPM and tool-only configuration make it less ideal for heavy-duty continuous use. It is best suited for users already invested in the Craftsman V20 battery system who need a portable, durable grinder.
| Attribute | ![]() | ![]() |
|---|---|---|
42 watts | 850 wattsbest | |
8,500 rpm | 9,000 rpmbest | |
114.3 mmbest | 114 mm | |
20 voltsbest | 20 voltsbest | |
| ↓ lower better | 2.59 kg | 1.61 kgbest |
2.1 ampsbest | — |
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| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(3) | ||
Motor Power (watts) | 42 watts | 850 watts |
No-Load Speed (rpm) | 8500 rpm | 9000 rpm |
Amperage (amps) | 2.1 amps | amps |
Dimensions & Weight(1) | ||
Weight (kg) | 2.59 kg | 1.61 kg |
Compatibility & Build(2) | ||
Wheel Diameter (mm) | 114.3 mm | 114 mm |
Spindle Thread | 5/8 | 5/8-11 |
Safety & Controls(5) | ||
Switch Type | Trigger | Paddle Switch |
Overload Protection | false | true |
Kickback Control | false | true |
Guard Type | Tool-free Adjustable | Standard |
Soft Start | false | true |


Products in the top-left offer the best value (high score, low price).