Cut Off Tool Head Type Standard Head Grip Style Barrel Grip Voltage 20V DC Wheel Diameter 4 1/2 in For Wheel Type Type 27 Brushless Motor No Battery Capacity 1.7 AH Cordless Tool Kit Contents (1) Bare Tool (2) Batteries Safety Features Lock-Off Switch Switch Type Trigger Lock-Off Switch Yes Lock-On Switch No Brake Type None Switch Location Bottom Max Speed 8 000 RPM Minimum Speed 8 000 RPM Speed Ranges 8 000 RPM Accessory Free Tool Change Yes Spindle Thread Size 5/8 in-11