Features: Taps are designed with spiral-flutes and the chip clearing-process would be better. Works with any drill bit and any screw size, perfect for stripped, broken, stuck-or damaged and removing screws. High hardness screwdriver kit, you can easily remove the rusty, broken, embedded, viscous screw in a few seconds. Use a drill bit to drill a deep hole in the screw head and then reverse the screwdriver counterclockwise into the damaged screw until it is released. Great for all homeowners, woodworkers, mechanics, artists, hobbyists etc. Specifications: Material:High-speed Steel Size:As Picture Shown Note: .Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. .Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings. Package includes: 1 Set High-speed Steel Drill Bit