This product is a hexagonal drill bit, which is mainly made of high-speed steel material, strong and durable, good texture, reasonable design and practical functions, which can effectively help you improve your work efficiency and save your time. Each drill bit is carefully crafted, with excellent convenience and accuracy, and will be a good replacement for you. Features -Color:Assorted Color -Material: High-speed Steel -Size: About 6.00X1.00X1.00cm/2.36X0.39X0.39inch. -It is made of durable high-speed steel material, which is sturdy and practical, and has a . -The cutting speeds of the product is fast and the strength is strong, and it can form a incision. -The product has fine workmanship and excellent texture, which can provide fast and accurate drilling to improve efficiency. -It has a wide range of uses and is suitable for electric hand drills, drilling machines, milling machines, machining centers. -Professional and practical, easy to replace, convenient and durable, it will be your of replacement accessories. Package list: 6 x drilling bits