This 13-piece heavy-duty drill bit set is built for precision and durability, featuring 135° split point tips that reduce walking and improve drilling accuracy. Made from high-speed steel (HSS) with a black oxide finish, the bits offer excellent wear resistance and coolant retention. The short screw machine length design is ideal for tight spaces, especially in automotive and construction settings. Sizes range from 1/16" to 1/4" in 1/64" increments, all stored in a rugged metal case. With a round shank and right-hand spiral flutes, these bits ensure compatibility and efficient chip removal.