The Milwaukee M18 FUEL 4-1/2 In. - 6 In. Braking Grinder， Paddle， 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 delivers 9，000 RPM and the power equivalent of a 13A corded grinder. REDLINK PLUS Intelligence ensures maximum performance and protects the angle grinder from overload， overheating and over discharge. Rapid Stop Braking stops all accessories in under 3 seconds. Providing 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 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 ensures less downtime as they work. The angle grinder's grinding wheel is sold separately. Includes (1) FIXTEC nut， (1) T27 guard， (1) back flange， (1) wrench， and (1) side handle. Tool Only - battery and charger not included.