The professional IRWIN HSS TITANIUM 4.0 mm metal drill bit offers higher drilling speed, long service life, and precise centering thanks to the ground 135° tip. The titanium nitride (TiN) coating provides wear resistance and lower friction for clean and accurate holes in metal materials.
The IRWIN HSS TITANIUM drill bit with a 4.0 mm diameter is designed for fast and precise drilling in metal. The industrial-grade ground flute efficiently evacuates chips, while the 135° tip ensures stable starting without walking and requires less feed pressure during work. The TiN coating with a hardness of approx. 80 HRC significantly reduces friction and increases resistance to thermal load.
Thanks to its low coefficient of friction, you can achieve up to 6× longer life than standard HSS drill bits with black oxide. In practice, this means you can increase speed by 40–60% and feed by 10–20% without significantly shortening tool life. The cylindrical shank makes clamping in standard chucks easy and supports stable rotary drilling.
- Fast chip evacuation: ground flute for a clean hole
- Precise centering: 135° tip for lower pressure and greater control
- TiN coating: higher hardness, lower friction, improved wear resistance
- Efficient cooling: more heat is transferred to the chip and coolant, less into the drill bit
- Universal use: suitable for rotary drilling in metals
Specifications
- Diameter
- 4.0 mm
- Working length
- 43 mm
- Overall length
- 75 mm
- Shank
- Cylindrical
- Drilling method
- Rotary
- Application
- Metal
- Drill bit material
- HSS with TiN (titanium nitride) coating
- Tip angle
- 135°
- Coating hardness
- approx. 80 HRC
- Service life
- Up to 6× longer than standard HSS with black oxide
- Recommended speed increase
- by 40–60%
- Recommended feed increase
- by 10–20%
