Irwin Bi Metal High Speed Hole Saw

The 51mm IRWIN Bi-Metal High Speed Hole Saw is perfectly sized for larger plumbing installations, including standard 50mm waste pipes and substantial ventilation ductwork. This diameter is essential for bathroom and kitchen installations where larger diameter drainage is required, making it indispensable for plumbers and contractors. Built with advanced bi-metal construction and electron beam welded teeth, this 51mm holesaw maintains cutting efficiency through demanding daily use. The variable tooth design (4-6 pitch) ensures faster cutting action across multiple materials, from softwoods through to harder metals like stainless steel and iron.