Our M18 FUEL 4-1/2 in - 6 in Braking Grinder, Paddle Switch, No-Lock is our highest performing small angle grinder. It generates the power of a 13A corded grinder, brakes all accessories under 3 seconds, and has 6 in grinding capacity. The POWERSTATE Brushless Motor provides you 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 your angle grinder from overload, overheating and over discharge. The Rapid Stop Brake feature stops all accessories in under 3 seconds. Providing you with high performance, advanced ergonomics and legendary durability, the M18 FUEL 4-1/2 in - 6 in Braking Grinder is designed to complete the toughest grinding, surface preparation and cutting applications with all 4-1/2 in - 6 in accessories. The M18 REDLITHIUM HIGH OUTPUT XC6.0 Battery provides you with more material removed per charge and unmatched run-time in all applications. Tool-free accessory changes using the FIXTEC nut and tool-free guard adjustments mean you will experience less downtime as you work. The cordless angle grinder's grinding wheel is sold separately. The kit includes two M18 REDLITHIUM HIGH OUTPUT XC6.0 Batteries