Brushless motor delivers 1,550 max watts out and up to 9,000 rpm. E-Switch Protection™ requires the trigger switch to be cycled (turned off and on) in the event of a power outage or other unexpected shutdowns to restart. Includes: 20V MAX* 4-1/2 in - 5 in Brushless Cordless Paddle Switch Small Angle Grinder With FLEXVOLT® ADVANTAGE™, side handle, 4-1/2”Type 27 guard.