General description Made of carbide for long durability, this set of 5 wood drill bits is designed for precision drilling in all types of wood. The high-speed steel drill bits are ideal for creating overlapping, angled, and pocket holes, making it easy to drill hinge holes and fix cabinets. Technical specifications Sizes: φ30mm, φ40mm, φ45mm, φ50mm, φ60mm Maximum hole depth: 50mm Material: Carbide Installation Compatible with drilling machines, pistol drills, drill stands, and mobile magnetic tape drills. Usage Suitable for drilling spherical tip holes for doors and drawers. Effective for perforation on wood products, including wood and plywood.