Angle Grinder Head Type Standard Head Grip Style Barrel Grip Voltage 18V DC Wheel Diameter 4 1/2 in 5 in For Wheel Type Type 27 Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool Safety Features Electronic Clutch for Kickback Protection Overload Protection Switch Type Paddle Lock-Off Switch No Lock-On Switch No Brake Type None Switch Location Bottom Max Speed 11 000 RPM Minimum Speed 11 000 RPM Spindle Thread Size 5/8 in-11 Guard Adjustment Toolless Adjustable