Highest quality high speed steel made from specially hardened chrome molybdenum steel that will not bend or loose its shape
Use on ferrous and non-ferrous metals such as mild steel, sheet metal, iron castings, brass, copper, aluminum, wood, and PVC
13 piece set includes one each 1/16", 5/64", 3/32", 7/64", .13", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", and .25" drill bits in a convenient plastic storage case