The MILWAUKEE® M18 FUEL™ 4-1/2"-7" Variable Speed Braking Grinder, Paddle Switch w/ ONE-KEY™ is the newest addition to Milwaukee's battery-powered grinder lineup, generating 13A Corded Power, 4 Speed for Increased Control, and RAPIDSTOP™ Brake for Enhanced Safety. The POWERSTATE™ Brushless Motor delivers 5,000- 8,400 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 unmatched levels of performance, protection, and compatibility. When paired with the M18™ REDLITHIUM™ FORGE™ 8.0 Battery Pack, you get more material cut per charge and unmatched run-time in all applications. The Variable Speed dial provides 4-speed settings between 5,000 RPM and 8,400 RPM allowing for greater control in more applications. The M18 FUEL™ 4-1/2"-7" Variable Speed Braking Grinder takes cordless tools to the next level in performance, run-time, and application versatility.