Individual drill bits come in HSS, High Speed Steel, Titanium Coated, Cobalt, Fractional, Metric, Aircraft, Jobber Length, Screw Machine Length, and Mechanic Length. We have Made In USA drill bits for drilling stainless steel, drilling mild steel, drilling aluminum and drilling wood. The Made In USA Drill Bits are good quality and the drill bits have the highest holes drilled per dollar. The drill bit brands and drill manufacturers that we carry are Irwin, Hansen, milwaukee, dewalt, and champion. These drill bits are used in all types of steel fabricating.