Includes die grinder, 14 in. collet, 2 wrenches. Powerful, high-speed, 3.5 Amp motor 25,000 RPM runs cooler under continuous use for long life. ACDC switch for use with alternative power source. Protective zig-zag varnish seals the armature from dust and debris for longer tool life. Vent slots designed to direct exhaust air away from the user.