The 57mm IRWIN Bi-Metal High Speed Hole Saw is perfectly sized for installing larger ventilation components, substantial soil pipes and various commercial plumbing fixtures. This diameter provides sufficient clearance for insulated pipes and larger ductwork, making it essential for HVAC engineers and commercial plumbers. Built with advanced bi-metal construction and electron beam welded teeth, this 57mm holesaw maintains sharpness and cutting efficiency through demanding use. The sharp, variable
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