The Milwaukee SHOCKWAVE RED HELIX drill bit is easy to use. This item has a 10.5 mm diameter. Designed for right hand cut applications. Has a 3.07 in flute. Comes with a 1/4 in shank. The drill bit has a 135° point for hole making applications. This drill bit is made of titanium coated with a titanium nitride finish. Has a Standard point. Packaged 1 each.