Countersink Material: high speed steel Size: 6 mm, 8 mm, 9 mm, 12 mm, 16 mm, 19 mm Finish: coated Designed to create clean, flush countersinks for screw heads with precision and reliability. The high speed steel construction provides a sharp cutting edge, while the coated finish reduces wear and heat buildup for longer tool life. Key benefits - Delivers precise, flush countersinks for a neat, professional finish - Durable high speed steel with coating extends tool life and maintains sharpness - Six common sizes cover a range of screw diameters (6, 8, 9, 12, 16, 19 mm) Use scenarios - Woodworking and cabinetry: countersink screws flush with panels, shelves, and furniture faces - Furniture assembly and repairs: achieve hidden fasteners with clean, uniform results - DIY projects with soft metals or plastics: create flush seating for screws in light metal or plastic components