The MILWAUKEE M18 FUEL 4-1/2" - 6" Braking Grinder, Paddle Switch, No-Lock is the highest performing small angle grinder. It generates the power of a 13A corded grinder, brakes all accessories under 3 seconds, and has 6" grinding capacity. The POWERSTATE Brushless Motor provides users with 9,000 RPM and the power equivalent of a 13A corded grinder, delivering industry-leading performance. REDLINK PLUS Intelligence ensures maximum performance and protects the angle grinder from overload, overheating and over discharge. The Rapid Stop Brake feature stops all accessories in under 3 seconds.