Used for wood perforation, spherical tip installation on doors, drawer tips, plastic products, wood, plywood, etc. Trepanning provides a smoother cut with less noise. Sharp edge, high hardness, precise positioning, high precision, smooth cutting surface, impact strength, and high toughness. Enables woodworkers to drill holes without drilling completely through the material, achieving a clean and precise finish. Made with high-quality alloy blade for increased sharpness and durability. The curved head design facilitates efficient chip removal and faster perforation. Suitable for use with handheld drills, bench motor-driven drills, and portable magnetic base drills. Color: Gray Material: HSS (High-Speed Steel) Diameter: 40mm Total Length: 80mm Shaft Length: 65mm Shaft Diameter: 7mm - 10mm Head Length: 15mm Hardened and tempered carbon steel construction. Package Includes: 1 x Hole Cutter Drill Bit Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3cm.