Drill Bit Irwin IR HSS PRO TiN DIN 338, HSS, 1.5 mm, cylindrical shank

Irwin IR HSS PRO TiN DIN 338 drill bit with a 1.5 mm diameter and cylindrical shank is a precision tool designed for small-diameter metal drilling. Manufactured from high-speed steel (HSS) and finished with a titanium nitride (TiN) coating, this bit follows the DIN 338 standard for general-purpose twist drills. The combination of HSS material and TiN surface treatment delivers improved wear resistance and extended tool life while maintaining the geometry required for accurate, clean holes in metals and metal alloys. The cylindrical shank fits standard drill chucks and supports a range of workshop drilling tasks requiring tight tolerances.

Advantages

The HSS core provides durability and toughness for drilling into steel and non-ferrous metals, while the TiN coating reduces friction and increases surface hardness to slow wear. Conformance to DIN 338 ensures consistent geometry and reliable performance across applications. The small 1.5 mm diameter allows precise hole placement and minimal material displacement, and the cylindrical shank design ensures compatibility with standard chucks and many bench and hand drills.

Suitable for

• Drilling holes in steel, stainless steel and non-ferrous metals
• Workshop and maintenance drilling tasks requiring small-diameter holes
• Prototype work and precision metal fabrication
• Use with standard hand drills and drill presses that accept cylindrical shanks

Key specifications

• Material: high-speed steel (HSS)
• Coating: titanium nitride (TiN) for increased wear resistance
• Standard: DIN 338 twist drill geometry
• Diameter: 1.5 mm
• Shank type: cylindrical shank compatible with standard drill chucks
• Typical applications: metal drilling, alloys, general workshop use

How to use

Mount the drill bit securely in a compatible chuck, ensuring the cylindrical shank is seated and tightened to prevent slippage. For metal drilling, select an appropriate spindle speed: higher speeds for small diameters but reduced if excessive heat or chatter occurs. Apply steady feed pressure and use cutting fluid or lubricant when working with harder steels to reduce heat and extend bit life. Withdraw the bit periodically to clear chips and reapply coolant as needed.

Usage recommendations

For best results, start with a center punch or pilot mark to prevent walking, use suitable cutting lubricant when drilling stainless or hardened steels, and avoid excessive overheating to preserve the TiN coating and HSS substrate.