Mesee 6 Pcs Combination Drill & Taps Bit Set, 1/4-inch Hex Shank Blue Coated HSS Tap Drill Bits M3*0.5 M4*0.7 M5*0.8 M6*1.0 M8*1.25 M10*1.5 Screw Tapping Threading ToolsInstead of changing and drilling different tools to get the job done, you need to put on the drill and tap bit and drill one time.The drill and Tap bit is designed to be multi-functional, including drilling holes, making threads, and chamfering holes simultaneously.Screw tapping bits can drill, tap, deburr, and countersink holes on sheet metal, soft thin metal like copper, brass, aluminum, plastic, PVC, fiberboard, and wood.It comes with a storage case for easy portability. You can store it directly in your toolbox, allowing you to easily access it wherever you go—no more lost bits or searching for what you need.1/4-inch hex shank drill tap bits are suitable for cordless drills, electric screwdrivers, bench drills, and other tap machines. This tool set is perfect for tapping, small repair projects, DIY projects, and home maintenance.When using these multi-function drill bits,Apply oil when drilling which will increase working speed and durability.Please drill at a vertical angle of 90 degrees from the object to have a straight thread for the screw to fit in.After threading, put the drill in reverse, and carefully pull out the bit straight to prevent damaging the thread. Specifications:Type: Tap Drill BitMaterial: High-Speed Steel (HSS)Surface Treatment: Blue CoatedChamfer Angle: 90°Shank: 1/4 Inch(6.35mm) Hex ShankMetri Size: M3*0.5, M4*0.7, M5*0.8, M6*1.0, M8*1.25, M10*1.5Package Included:6 x Hex Shank Tap Drill Bits