Hammer Drill Bit & Concrete / Masonry Drill Bit;
HSS & Flat Wood Drill Bit, Wood Auger Bit & Brad Wood Bit & Wood Forstner Bit;
Diamond Saw blade & Hole Saw & Screwdriver Bit;
Hollow Mortising Chisel Square Hole Mortising Chisel Bit
Hollow Mortising Chisel
Made of high-speed steel. Heat treatment, HRC48~50, high hardness, lengthened core, high concentricity.
▲ Great for drilling square holes in wood with a mortis...