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. cuts up to 1-1/2" deep holes. Arbors sold separately. Can be used in portable electric drill machines, lathes and milling machines.

Product Features:

• Professional bi-metal hole saws with cobalt high speed steel teeth electron welded to shatterproof shock absorbing alloy bodies
• Cuts up to 1-1/2-Inch deep holes
• Can be used in portable electric drill machines lathes and milling machines
• Arbors sold separately
• Made in the USA