Unique Bargains Carbide Hole Cutter 20mm Hole Saw High Density Cemented Carbide Teeth Triangular Shank 20mm

Features high density cemented carbide teeth (with one teeth breakage, the hole cutter still can drill holes.) and triangular shank for anti-skidding. Quick, precise, smooth cuts into up to material like stainless steel, high alloy steel, aluminum, plastic, FRP and PVC. The hole saw has a twist drill bit inside, which is detachable. Come with a hex wrench, make your job more convenient and easier. Protect carbide teeth from impacting when the drill bit through the cutting material.