Irwin Bi Metal High Speed Hole Saw

The 44mm IRWIN Bi-Metal High Speed Hole Saw is perfectly sized for installing downpipe connectors, larger ventilation grilles and substantial plumbing fixtures. This diameter is frequently specified for rainwater and soil pipe installations, making it essential for roofing contractors and drainage specialists. Built with advanced bi-metal construction and electron beam welded teeth, this 44mm holesaw delivers reliable performance across multiple materials. The sharp, variable tooth design (4-6 pitch) ensures efficient material removal with reduced operator fatigue, producing clean holes whether working with fascia boards or metal cladding.