Titanium Nitride coated bits last up to six times longer than standard high speed steel drill bits, Cutting edge stays sharper longer, Coating reduces friction, Cutting Diam: 15/64 in, Flute Length: 2-5/8 in, Overall Length: 3-7/8 in, Applications: Repetitive Metal Drilling w/Portable Drills, Stationary Drill Press, Cutting Edge Material: HSS, Finish: TiN, Length Group: Jobber, No, of Flutes: 2, Point Angle: 135, Point Shape: Split Point, Shank Type: Cylinder, Spiral Angle: CW, Type: HSS Drill Bit, SKU: EGLT18754