General description Bi-metal hole saw designed for efficient drilling in various materials including sheet metal, drywall, plastic pipes, wood, PVC, and fiberboard. With a diameter of 80mm and a 10mm shank, this hole saw is made from high carbide tipped materials, ensuring durability and longevity. Technical specifications Diameter: 80mm Shank: 10mm Material: M42 carbon steel and bi-metal Cutting speed: 4 to 7 times faster than high-speed steel Usage Ideal for installing locks and knobs in doors and cabinets Suitable for drilling larger diameter holes in desks and other applications