EZARC SolutionEZARC Tungsten Carbide Teeth hole saws are industrial quality with more than 10 times longer life comparing with traditional bi-metal hole saws on all metal materials including stainless steel, mild steel, high alloy steel, aluminium and even Fiberglass Reinforced Plastic, hardwood. The high quality Tungsten Carbide Teeth can resist the highest heat and abrasion under fast RPM drilling, which guarantees extremely long life. The sharp cutting edges and ideal gullet design guarantees fast cutting speed and efficient chip removal. Applications: Smooth cuts into materials including iron pipes, thick metals, stainless steel, high alloy steel, aluminum, plastic, FRP and PVC up to 5mm thickness. Widely used for home decoration work, e.g. drill holes on metal plate in the kitchen room, door structure and cable box. Heavy usage on industrial plants, e.g. applications in heating, ventilation and air conditioning demand an enduring hole saw that delivers a precise cut into high-quality stainless steel. Precise drilling for electric boxes to smoothly assemble buttons, switches, and displays. USAGE SUGGESTION: Keep the drill be stable when drilling, otherwise, the center bit may get snapped due to excessive shaking.SpecificationSize from 9/16 inch to 2-3/4 inch 9/16 5/8 11/16 3/4 13/16 7/8 15/16 1 1-1/16 1-1/8 1-3/16 1-1/4 1-5/16 1-3/8 1-7/16 1-1/2 1-9/16 1-5/8 1-11/16 1-3/4 1-13/16 1-7/8 1-15/16 2 2-1/16 2-1/8 2-3/8 2-7/16 2-9/16 2-3/4 Cutting depth: <4.5mm Shank diameter: 10mm