The IRWIN bi-metal holesaws have been designed for the professional and made to provide long-lasting performance for use in general construction, electrical installation, plumbing, heating, ventilation, and remodelling applications. The sharp, variable tooth (4-6 pitch) design provides a faster cutting action and enhanced performance in a variety of materials and cutting applications. The bi-metal construction and the electron beam welded teeth give the user a stronger, longer-lasting blade. The IRWIN holesaw range is available from sizes 14 mm (9/16in) to 152 mm (6in), with a line up of high-quality arbors and a pilot drill to cover all application requirements. Cuts a variety of materials including: aluminium, copper, iron, stainless steel, wood and zinc.Select Option 102mm105mm108mm111mm114mm117mm121mm127mm133mm140mm14mm152mm168mm16mm177mm17mm19mm20mm210mm21mm22mm24mm25mm27mm29mm30mm32mm33mm35mm37mm38mm40mm41mm43mm44mm46mm48mm51mm52mm54mm56mm57mm59mm60mm62mm64mm65mm67mm68mm70mm73mm76mm79mm83mm86mm89mm92mm95mm98mm Add to Basket Quantity