Ruko Twist Drill Type UNI HSSE Co 5

10.0 x 133 x 87 mm. This high-performance spiral drill bit has been specifically designed for portable use in drills and cordless screwdrivers (optimal performance for materials up to 5.0 mm thickness). The three-flat shank ensures excellent grip in the chuck with minimal effort. Additionally, the shank provides optimal power transmission, preventing the drill bit from slipping! The 135º high-performance cutting edge ensures very high centering accuracy, especially in hand-held applications with the cordless screwdriver. The cutting edge prevents slipping when drilling into curved surfaces. Increased battery life due to reduced cutting forces. The black chamfer enhances wear resistance and prevents cold welding and build-up of cutting edges. The 40º helix angle allows for perfect and rapid chip removal, ensuring high cutting speeds with increased stability and accuracy. HSS Co 5: High-performance high-speed steel with a 5% cobalt content. High toughness and heat resistance, suitable for drilling in difficult-to-machine materials with a strength of up to 1100 N/mm².