Our M18 FUEL 4-1/2in / 5in Variable Speed Braking Angle Grinder, Paddle Switch No-Lock is the newest addition to Milwaukee's battery-powered grinder lineup, generating 11A Corded Power, 5 Speed for Increased Control, and RAPIDSTOP Brake for Enhanced Safety. The POWERSTATE Brushless Motor delivers 3,500- 8,500 RPM and maximum sustained power to complete the toughest grinding and cutting applications, allowing you to push your cordless angle grinders harder and longer than ever before. REDLINK PLUS Intelligence ensures unmated levels of performance, protection, and compatibility. The M18 REDLITHIUM HIGH OUTPUT XC6.0 Batteries (not included) deliver 50 percent more power while running 50 percent cooler than our M18 REDLITHIUM XC Batteries. The Variable Speed dial provides 5-speed settings between 3,500 RPM and 8,500 RPM allowing for greater control in more applications. With tool-free accessory and guard adjustments, users will experience faster accessory changes and less downtime. The MILWAUKEE M18 FUEL 4-1/2in / 5in Variable Speed Angle Grinder takes cordless tools to the next level in performance, run-time, and application