
DEWALT DCG412B
Score: 72/100
Craftsman CMCG400B
Score: 68/100Rankings

The DEWALT DCG412B is a lightweight, cordless 4-1/2 inch angle grinder designed for portability and ease of use. It features tool-free adjustments and a 2-finger trigger, making it convenient for cutting and grinding tasks. However, it lacks advanced safety features like kickback control and requires a separate battery purchase.

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 wattsbest | |
8,000 rpm | 8,500 rpmbest | |
125 mmbest | 114.3 mm | |
20 voltsbest | 20 voltsbest | |
| ↓ lower better | 1.474 kgbest | 2.59 kg |
— | 2.1 ampsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Power & Performance(4) | ||
Motor Power (watts) | watts | 42 watts |
No-Load Speed (rpm) | 8000 rpm | 8500 rpm |
Motor Type | Brushed | Brushless |
Amperage (amps) | amps | 2.1 amps |
Dimensions & Weight(1) | ||
Weight (kg) | 1.474 kg | 2.59 kg |
Compatibility & Build(2) | ||
Wheel Diameter (mm) | 125 mm | 114.3 mm |
Spindle Thread | 5/8-11 | 5/8 |
Safety & Controls(1) | ||
Guard Type | Type 27 | Tool-free Adjustable |


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