6 Pcs 1/4" Hex Shank Drill and Tap Bits, Metric Thread M3-M10 Flute Metric Taps Set, Titanium Coated HSS Drill and Tap Bits, Hex-Shank Drill Bits for Tapping and Lathe - Schellen, Schellenohayfcumkb

• These taps are made of high-speed steel + titanium coating, the surface is nitrided, and has high hardness and rust resistance. Each tap drill is engraved with a size, which is convenient for you to choose the size that suits you. Suitable for drilling wood, plastic, fine copper, aluminum, sheet metal, plastic and other soft metals (5-6 mm), not for hard materials (eg steel sheet). Complete drilling, tapping, deburring and countersinking at one time, saving processing steps and time costs and improving work efficiency. The wide flutes carry the chips out of the hole. Do not need assistant center drilling or center punching.Anti-wear: The back of the cone over the faucet to prevent excessive drilling caused by thread damage Quick change 1/4” inch hex shank. Can be used with power tools, electric drill, group general tools, air and other any standard bit holders.