Makita GAG13Z 40V MAX XGT Brushless Lithium-Ion 5 in. Cordless X-LOCK Paddle Switch Angle Grinder (Tool Only) PERFORMANCE : Makita-built brushless motor along with 40V max XGT battery combine to deliver powerful grinding CONVENIENCE : X-LOCK quick change system allows for tool-free wheel changes CONTROL : AFT turns the motor off if rotation of the wheel is suddenly forced to stop PRODUCTIVITY : Electric brake stops the grinding or cut-off wheel in 2 seconds or less for maximum productivity INCLUDES : Grinding wheel, wheel guard and side handle (battery and charger not included) OUTPOWER: Makita-built brushless motor along with 40V max XGT battery combine to deliver powerful grinding and up to 60% faster cutting speed than predecessor models* OUTSMART: X-LOCK quick change system allows for tool-free wheel changes with an easy snap-on mounting and fast change-outs by simply pulling a release lever