Carbide Hole Saw Drill Bit,Product Details1.All In One: Drill bit, spring, wrench are included, no need to buy any extra accessories for the drilling works. The special hole design is conducive to small chip resistance and more convenient operation. It adopts thickened and sharp tungsten carbide teeth.2.Wide Applications: Carbide hole saw provides fast and precise cuts into stainless steel, alloy, aluminum, cast iron, and other metals up to 5mm, also suitable for opening holes in plastic, wood, plywood, cardboard, round or square pipes, equipment cabinet, spherical door locks.3.Specifications: Cutting dia.: 58mm / 2.28"; shank size: 10mm / 0.39"; cutting depth: 25mm / 0.98"; overall length: 104mm / 4.09"; non-slip triangular shank. Carbide hole cutter is with longer life than normal metal cutting hole cutters4.