The IRWIN HSS TiN drill bit with an 11 mm diameter is designed for demanding metal drilling with a focus on precision, speed, and long service life. The 135° point angle ensures a stable start without wandering and reduces the need for pressure. The titanium nitride (TiN) coating significantly reduces friction, withstands high temperatures, and extends service life by up to six times compared to standard HSS drill bits with black oxide finish.
Thanks to the industrial-grade ground spiral, chip evacuation is fast and efficient. The TiN coating with a hardness of approx. 80 HRC has a low coefficient of friction, generating less heat and reducing energy consumption. Compared to standard twist HSS drill bits, you can increase spindle speed by 40–60% and feed by 10–20% without substantially shortening tool life.
