Titanium nitride coating reduces friction and last longer, cutting edge stays sharper longer. Used in repetitive metal drilling with portable drills or stationary drill press. Jobber length.Titanium Nitride (TiN) coating resists heat and friction, providing up to 6X longer life than standard high-speed steel bitsHeavy-duty web design provides extreme rigidity when drilling in metal applicationsShorter cutting lips reduce torque for drilling in high tensile strength materials135 deg split point reduces feed pressure for easier penetration without work hardening and tip point ensures a true start and eliminates bit walking