【REVOLUTIONARY DESIGN 】Four Spiral Flute design ensures fast and smooth drilling with less wear. 1/4" Hex Shank is compatible with most drills and impact drivers.
【DURABLE HSS DRILL BIT】Impact Resistant design allows for high speed drilling in tough materials. Step bits can quickly and smoothly drill holes of different diameters, such as stainless steel, aluminum, wood, plastic board (the board must be thinner than the height of the step drill).
【SATISFACTION GUARANTEED】We stand behind the quality of our product. If you have any problems or are not satisfied with our metric drill bit set, please feel free to contact WildBossy for assistance.