IRWIN HSS Metal Drill Bit with Titanium Coating 4.2 mm

The IRWIN HSS TiN drill bit with a 4.2 mm diameter is engineered for demanding conditions and high productivity. The titanium nitride coating with a hardness of about 80 HRC significantly reduces friction and heat build-up, ensuring clean holes, longer life, and consistent performance even at higher speeds.

Thanks to the 135° ground tip, it achieves precise centering without the need for pre-drilling and requires less feed pressure. The ground industrial-quality flute efficiently removes chips and supports fast, smooth drilling. Compared to standard HSS bits, it allows 40–60% higher speeds and 10–20% higher feed rates without a major impact on tool life.

• TiN coating: lower friction, improved wear resistance, up to 6× longer service life.
• Improved heat dissipation: more heat is carried into the chips and coolant, reducing load on the bit.
• Accurate, clean holes thanks to sharp ground geometry and stable guidance.