The Dent Fix Equipment DF-15DX Spot Annihilator Kit includes the "Original Sptiznagel" Spot Weld Drill, bits, oil, and an in-line oiler in a molded plastic case. This drill is the only high torque drill with low speed for use on ultra high strength steels! It applies cutting pressure pneumatically for consistent pressure from the first to the last spot weld. No pushing bits means less breakage! The large blue adjument ring lets you set the drilling depth so you drill only through the top panel - leaving no plugs to grind off or pilot holes to fill. Get the DF-DX15 - it will become one of your most used and beloved tools!