Hole saw bi-metal. shark tooth hole saws are professional bi-metal saws with cobalt high speed steel teeth, electron welded to shatterproof, shock absorbing alloy bodies. Shark tooth's variable pitch tooth pattern cuts clean through stainless steel, brass, aluminum, pipe steel, nail embedded wood, hardwood, plywood, sheet metal, fiberglass and plastic. Extra deep 1-7/8 cutting depth. can be used in portable electric drill machines, lathes, and milling machines. set includes: hole saws-7/8,1,1-1/8,1/41-1/2, 1-arbor-pilot drill and adapter nut. Product Features:Set includes 7/8-Inch 1-Inch 1-1/8-Inch 1-1/4-Inch 1-1/2-Inch Shark Tooth bi-metal hole saws and one arbor with pilot drill bit and adapter nut Professional bi-metal hole saws with cobalt high speed steel teeth electron welded to shatterproof shock absorbing alloy bodiesCuts up to 1-1/2-Inch deep holesCan be used in portable electric drill machines lathes and milling machinesMade in the USA
