6 pcs Countersink Drill Set, 3 Flute 90 Degree HSS Chamfer Tool Bit, Deburring Bit for Metal, Wood, Aluminum, Stainless Steel (6.3/8.3/10.4/12.4/16.5/20.5mm)

Three-Flute Design: Our metal countersink drill bits all adopt a unique 90-degree three-flute design, which can better reduce vibration and burrs, discharge chips more smoothly, and let you enjoy the fun of metal drilling. Durable Material: The 90-degree countersink drill set is made of high-quality high-speed steel, which is sharper and more durable. This drill countersink drill set is very suitable for use on various common drill machines. Perfect Size: 6 x HSS countersink drill bits, 6 different sizes of countersink drill bits can meet your needs. Metal countersink drill bit sizes: 20.5mm, 16.5mm, 12.4mm, 10.4mm, 8.3mm, 6.3mm. Three-blade design, faster cutting speed. Wide application: This countersink drill bit is suitable for workpieces with a hardness of less than 65HRC, such as stainless steel, aluminum plate, carbon steel, thin iron plate, insulation board, PVC board, wood board, etc. High-quality service: Providing you with high-quality products and efficient and comprehensive service experience is our greatest pursuit. If the product brings you a bad shopping experience due to quality problems, please contact us and we will solve all your problems!