Description of π οΈ Efficient and Versatile: Combination Drill with 4 Inch Deburr Countersink
Made of hardened 4341 HSS, high quality with good durability for you to use. SAE Tap Drill Bit Size: M3*0.5mm, M4*0.7mm, M5*0.8mm, M6*1mm, M8*1.25mm, M10*1.5mm. 1/4 Inch (6.35mm) Hex Shank Combination Drill Tap Bit, back tapered beyond tap to prevent thread damage from over-drilling. Drilling and tapping, deburring and countersinking in one, one-step processing, improve working efficiency, saves labor and time. Suitable for tapping on wood or other soft metal,such as plank, aluminum plate and sheet iron etc, but not for stainless steel.