- Titanium Nitride Coated bits last up to six times longer than standard high speed steel drill bits
- Cutting edge stays sharper longer
- Titanium Nitride Coating reduces friction
- Repetitive metal drilling with Portable Drills, Stationary Drill Press
This IRWIN 29-Piece Titanium-Nitride-Coated Drill Bit Set includes drill bits with titanium-nitride coating that reduces friction and withstands heat, lengthening the life of the cutting edge and keeping it sharp. These drill bits are designed for repetitive metal drilling with portable drills and stationary drill presses. The 135° split-point tip on each step drill bit starts drilling immediately and helps eliminate walking.