General description The CSPARKV 28mm Countersink Drill Bit is designed for woodworking and hinge installation, providing precision and high-quality finishing. This drill bit is ideal for creating flat bottom holes, punched holes, and clean-cut through holes in various materials. Technical specifications Diameter: 28mm Material: Alloy Color: Silver Design: 2 Flutes Usage Perfect for hinge installation Woodworking repairs Model making Drilling in wood, wood products, plastics, plywood, and other materials