DeWalt 60V MAX* Brushless Cordless Grinders with Kickback Brake 13 Amp motor equivalent power. No-load speed of 9,000 RPM for applications with 6 inch grinder wheels. Kickback brake engages when a pinch, stall, or bind-up event is sensed, it engages with maximum force to quickly stop the wheel, reduce the movement of the grinder, and shut the grinder off. Anti-rotation E-CLUTCH activates in less than a tenth of a second when a pinch/stall is detected, shutting down the motor. Options available for bare tool only or kits with battery Pack of 1