Plumbers 11 Piece HSS Cobalt Bi-Metal 22-51mm Holesaw Set Surebuild SBHSSET2 Premium Bi-metal material (M42 grade), impact and wear resistant for clean and accurate holes through wood, wood with nails, PVC, aluminium, metal and non-ferrous metals (brass, copper). Slotted body design for effortless plug removal. Razor-sharp precision set teeth with variable pitch tooth-configuration provide clean and accurate holes. High quality M42 grade Bi-metal material with 8% Cobalt for higher strength teeth and longer performance life. Cutting depth - MAX 38mm. Can be used on battery or mains, combi and impact drills Expertly crafted for plumbers, the Surebuild SBHSSET2 is a premium 11-piece HSS Cobalt Bi-Metal 22-51mm Holesaw Set. Made with M42 grade material, it is highly durable and impact-resistant for providing accurate and clean holes in a variety of materials. The razor-sharp precision set teeth with variable pitch configuration make this set a must-have for any professional or DIY project. With a cutting depth of up to 38mm, it is compatible with all types of drills. . Guarantee 1 Year Contains 6 x Cobalt Premium Holesaws: 22mm, 29mm, 35mm, 38mm, 44mm, 51mm.1 x Large arbor 1 x Small arbor2 x Pilot hole HSS drill bits1 x Allen KeyStorage Case Material Steel Packaging Types Each Product Range Holesaw kit