Irwin Bi Metal High Speed Hole Saw – 10504187

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 tooth design (4-6 pitch) ensures efficient material removal across diverse materials, from timber framing through to harder metals. Features and Benefits: • 57mm diameter suits larger ventilation and soil pipes • Bi-metal construction delivers superior blade life • Variable tooth pitch (4-6) provides smooth cutting • Electron beam welded teeth resist breakage under load • Cuts aluminium, copper, iron, stainless steel, wood and zinc • Professional quality for commercial applications Specifications: Size (mm): 57 Material: Bi-Metal Pitch: Variable