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, Size: 9/32"", Twist Length: 2-15/16"", Overall Length: 4-1/4"", SKU: ISN13234