Stark Usa 31014 Industrial 5Pc Cobalt Uni Step Bits Spiral Flutedrill Bit Set

5pc Step drill bits are constructed from traditional HSS combined with a titanium coating to make them even more durable. This also proves the capability and durability of the drill to last through multiple drilling on surfaces such as: plastic, aluminum, copper, stainless steel, and so much more. Features: It great for sheet metal, aluminum sheets, wood chips, plastic and wood board. It a perfect choice for DIY and engineering use. Engraved Sizes Easily identify which size you need with the contrasted, laser engraved sizes inside the step drill bit flute. High speed steel along with titanium coating ensures outstanding durability and sharpness, can reduces the friction, runs cooler. Split point tip is at 118 degrees to increase the wear resistance. The two flute design provides a smoother cutting, allows the material particles escape easily for a much more clean drilling operation. Set includes (5) common sizes for versatility, can fit the majority of brands curre