Titanium Nitride Coated High Speed Steel Fractional Straight Shank Jobber Length Drill Bit 1/8" Size. 1-5/8" Twist Length. 2-3/4" Overall Length. 2 Bits - Carded. Titanium nitride coating extends the life of the bit; lasts up to six times longer than standard high speed steel drill bits Heavy-duty web design provides extreme rigidity when drilling in metal applications Shorter cutting lips reduce torque when drilling in high tensile strength materials 135-degree split point reduces feed pressure for easier penetration without work hardening