Firestorm 18 Volt Cordless Rotary Saw High speed motor (24,000 RPM) gives quick cut outs in drywall, wood, and plastics. Compatible with all common 1/8" and 1/4" rotary bits Adjustable depth allows cutting through a variety of materials when cut depth is sensitive Circle cutter attachment allows easy perfect circle cuts for pipes and recessed lighting. 18 volts of cordless power for convienence and power