HSS Bi-Metal Hole Saw 78 mm for Wood and Metal with Cutting Depth 35 mm for Steel, Cast Iron, Aluminium, Drywall, Plywood and Acrylic

The hole drill bit is made of high speed steel, which makes it a hole saw with high hardness (69HRC) and pressure resistance. Compared with high carbon die steel and chrome, it has better toughness and wear resistance, strong and sturdy for long-term use. With the progressive toothed bar, the hole saw provides a powerful bite. In addition, the bi-metal construction increases reliability by eliminating the risk of breakage and provides impact resistance for a clean cut. And variability allows you to cut at different speeds depending on the chosen material. The increased hardness of alloy technology and optimized tooth geometry allow these hole saws to have faster and more accurate cutting than standard hole saws, the cutting diameter difference should be less than one millimeter. The circular hole cutters are suitable for drilling round holes in wood, plastic, steel, cast iron, copper, aluminum. They are cutting tools for installing the recessed ceiling or floor fixtures, to mount ventilation pipes or exhaust fans in the wall, also to install the plug and patch cables in the office or drywall. Each hole saw comes with a drill and hex shank.