The Milwaukee® M18 Fuel™ 4-1/2" / 5" Grinder Paddle Switch, No Lock Is The Next Advancement In Power and Performance, Generating 11A Corded Power, Fastest Cutting, and Delivering Up to 135 Cuts Per Charge. The M18 Fuel™ 4-1/2" / 5" Grinder Generates 11A Corded Power Allowing Completion Of The Toughest Grinding and Cutting Applications, All On The M18™ Cordless System. The Powerstate™ Brushless Motor Delivers Maximum Sustained Power and 8, 500 RPM to Remove Material Faster and Increase Productivity. Redlink