Package Details: This set contains 7 titanium-coated high-speed steel metal drill bits, covering the most commonly used sizes: 3mm, 4mm, 5mm, 6mm, 6.5mm, 8mm and 10mm. These hexagonal shank drill bits are designed to fit most electric drills on the market, ensuring you have the right size for every task. Reliable Materials: These metal drill bits are made of high-speed steel and coated with a titanium coating, providing superior sharpness and durability. The titanium coating ensures that the drill edge remains longer, extending the life of standard drill bits by 2 times Exquisite Design: With a fully ground spiral flute design, these metal cutting drill bit accessories minimize friction and heat for cooler and faster drilling. The straight shank design prevents the drill from deflecting, ensuring precise and fast starting and improving drilling efficiency Powerful Functionality: The center serrations of these side-cutting drill bits significantly improve chip discharge and increase overall drilling efficiency. Whether you are dealing with wood, metal, plastic or drywall, this design makes the drilling process smoother and faster Wide Application: These versatile titanium drill bits are suitable for a variety of materials, including sheet metal, wood, aluminum alloy, plastic and drywall. Whether it is grooving, drilling or cutting, this set of tools is ideal for any of your projects Name: Metal Drill Bits Color: Material: Metal Package Contents: 7 x Twist Drill Bits(3/4/5/6/6.5/8/10mm) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.