YATO YT-44739 step drill bit. Designed for drilling high-quality stainless steel, structural steel, and cold-rolled steel, non-ferrous metals, steel sheets, and plastics. • made of HSS 4241 high-speed steel, coated with titanium nitride to increase the life of the drill bits • the edges of the drilled hole remain clean and burr-free • self-centering on rounded and slippery surfaces • quick heat dissipation when drilling in hard materials • 2 spiral chip flutes efficiently remove the drilling dust • a handle with 3 flat surfaces allows for the transfer of maximum torque Parameters Diameter [mm]: 6-35 Material: HSS 4241 steel Length [mm]: 75 Application: Metal Handle: Cylindrical EAN: 5906083054020