The Professional Woodworker 80 Piece Rotary Tool Kit covers all of your basic needs from grinding to sanding to drilling, sawing, or polishing. Features: * 12 volt cordless rotary tool * 16000 RPM * Small, thin body construction allows rotary tool to easily fit in to your hand and also allows it to fit in to tighter spots when detail work is needed What"s In The Box: * DC12V mini grinder * (25) cutoff wheel discs * Mandrel for cut wheels * (4) polishing cloth wheels * Mandrel for polishing cloths * Carbide burr * (4) drill bits * 4-piece collet set * (2) sanding drum wheels * (4) sanding drum sleeves * Mounted nylon brush * (2) wire brush wheels (steel and brush) * (10) aluminum oxide mounted grinding stones * (20) diamond burr bits