Features Premium Durability: Crafted from high-speed steel, this drill bit ensures long-lasting performance and resistance to wear for all your drilling needs Efficient Chip Removal: The deep cut spiral flutes enhance material removal and allow for effective chip extraction, keeping your workspace clean and efficient Straight Shank Convenience: Featuring a straight shank design, this bit provides easy operation and compatibility with various hand-operated drills and drill presses Versatile Applications: Ideal for drilling in block, masonry, and concrete, this drill bit is perfect for both professional and DIY projects, making it a must-have in your toolkit Enhanced Cutting Performance: The specially treated finish retains cutting fluid and minimizes chip welding, reducing friction and extending the life of the bit Features: 1、The twist drillare made from premium high speed steel for increased durability. 2、Bit has a straight shank, which is more convenient to operate. Milled flutes with deep cut spiral that delivers fast material removal. The flutes of the drill bit act a passageway for chip extraction from the hole and for coolant to enter the hole. 3、This finish gives a strongly adhering treatment that acts to retain cutting fluid and prevent chip to tool welding, reducing the formation of a built？up edge. 4、Drilling, or hole making, is the most common metalworking in the world. Twist drill bits are the most common type of drill bit used. Twist drill bits are commonly used to drill holes with hand operated drills, standalone drill pres, or lathes. 5、This product is designed for impact applications, for fast drilling in block, masonry and concrete, ect. Specification: Features: Straight shank design is more suitable for many electric drills and drilling machines(here is not included) Sharp and twisted flute will make the drilling be more easy and effortl Suitable for wood, aluminum, plastic, etc Specification: and Product Name: Twist Drill Bit Design: Straight Shank Material: HSS Diameter and total length: 4.5mm Twist bit, 200mm total length Package include: 1 x Twist Drill Bit Package List: 1 x Twist Drill Bit Package List 1 x Twist Drill Bit