Angle Grinder Head Type Standard Head Grip Style Barrel Grip Voltage 18V DC Wheel Diameter 4 1/2 in Brushless Motor Yes Cordless Tool Kit Contents (1) Bare Tool Safety Features Anti-Kickback Clutch Anti-Restart Lock-Off Switch Tether Capable Switch Type Paddle Lock-Off Switch Yes Lock-On Switch Yes Max Speed 9 000 RPM Minimum Speed 9 000 RPM Accessory Free Tool Change No Spindle Thread Size 5/8 in-11 Anti-Restart Technology Yes Anti-Vibration Technology Yes