Hole Saw Kit 16mm (5/8"), M2 High Speed Steel Hole Cutter with Center Drill Bit, Hex Key and Spring - for Medium-Hard Metal, Wood, Plastic, Plasterboard, PVC Boards. Silver$$Tools & Hardware Other

[1]APPLY TO - M2 High Speed Steel Hole Saw Kit is engineered for drilling medium-hard metal, wood, and synthetic materials including pvc, plastic, and plasterboard, with specific compatibility for structural alloys such as low-carbon steel, brass, and aluminum alloys. It operates effectively on hand-held electric drills, bench-mounted vertical drills, and portable magnetic base drills, serving critical functions in automotive maintenance, metal fabrication, and carpentry renovation projects [2]SPECIFICATION - Hole Saw Diameter: 16mm/(5/8"), Cutting Depth: 3mm/(1"), Shank Diameter: 7mm/(0.28"), Total Length: 65mm/(2.56") with Triangular Shank, with 1pc Center Drill Bit Diameter: 5mm/(0.2"), with 1pc Hex Key [3]DESIGN - Surface Hardening Treatment (Nitriding + Polishing) - Provides the surface of the hole saw with wear resistance while maintaining sufficient toughness on the inside. The surface is smooth and glossy, rust-resistant and aesthetically pleasing. [4]ADVANTAGES - Our hole saw are heat-treated + surface treatment (Quenched + Tempered) to increase hardness and red-hardness as well as wear resistance，extending service life and increasing machining efficiency [5]EXPAIN - Need to rotate the center drill to make it fixed, use the hex key to align the locking pin with the hole of the groove of the center drill, tighten and fix it on the tool could be used, at the same time, you need to pay attention to the installation of the spring. Pay attention to keep the vertical state