90° HSS Self-Centering Countersink Punches, Countersink Drill Bit Set, Chamfer Head Tools, Carbide Countersink Drill Bits, 1/4'' Hex Shank for Wood and Metal, 6, 8, 9, 12, 16, 19mm, 7pcs

General description 90° HSS Self-Centering Countersink Punches are designed for precision drilling in various materials. This set includes 7 pieces with different cutter sizes, making it versatile for both wood and metal applications. The countersinks are made from high-quality HSS 4241 with a titanium coating, ensuring clean and burr-free processing. Technical specifications Sizes: 6.3 mm, 8.3 mm, 10.4 mm, 12.4 mm, 16.5 mm, 20.5 mm Material: HSS 4241 with titanium coating Tip material: Heat-treated carbon steel blades Usage The 90° countersink set is suitable for working on a variety of materials, including: Carbon steel Sheet steel Iron Aluminum Insulation PVC Wood panel (soft and hard) Plastic Other information Automatic punch with chromium-vanadium alloy pin Durable spring and ABS ball handle to prevent impact damage Copper main body to prevent rust WARNING: Not suitable for stainless steel and marble Grindable tips for enhanced sharpness and longevity