Angle Grinder Head Type Standard Head Grip Style Rat Tail Voltage 20V DC Wheel Diameter 4 1/2 in Brushless Motor No Cordless Tool Kit Contents (1) Bare Tool Safety Features Adjustable Guard Switch Type Trigger Lock-Off Switch No Lock-On Switch No Max Speed 8 500 RPM Number of Speed Settings 1 Accessory Free Tool Change Yes Spindle Thread Size 5/8 in-11 Guard Adjustment Toolless Adjustable Anti-Restart Technology No Anti-Kickback Clutch Type None