Features 2 Speed Drills out the entire spot weld eliminating the need for grinding Adjustable depth stop which allows you to drill out just the spot weld and not the panel beneath Kit Includes One Air Spot Weld Drill One 5.5 Inch Deep Clamp Four Drill Bits One End Line Oiler One 3 Way Swivel One Plastic Blow Molded Case Specifications Drill Bit Size Chuck Cap – .3125 inch Free Speed – 2 000 rpm Overall Length – 8.75 inch Air Inlet Thread NPT – 0.25 inch Air Hose I.D. Size – .375 inch Air Pressure – 90-120 psi