Drill Bit Irwin IR HSS PRO TiN DIN 338 3.0 mm - straight shank

Irwin IR HSS PRO TiN DIN 338 3.0 mm drill bit with a straight (cylindrical) shank is a small-diameter high-speed steel cutter designed for precision metalworking and general workshop drilling tasks. The drill bit follows DIN 338 geometry for standard point angles and flute design, and is finished with a titanium nitride (TiN) coating to increase surface hardness and wear resistance. The combination of HSS material and TiN surface treatment supports consistent cutting performance and extended tool life when drilling steels, non-ferrous metals and other common workshop materials.

Advantages

This 3.0 mm HSS PRO TiN drill bit provides improved wear resistance and reduced friction thanks to the titanium nitride coating, which helps maintain cutting edges and reduces heat buildup during drilling. The DIN 338 geometry ensures predictable chip evacuation and a stable drilling trajectory for small diameters. The straight shank allows secure clamping in standard drill chucks and collets, making the bit compatible with a wide range of hand drills and drill presses used in metalworking and maintenance tasks.

Suitable for

• Precision drilling in mild and alloy steels
• Drilling non-ferrous metals such as aluminum and brass
• Small-diameter holes in mechanical assembly and maintenance
• General workshop and fabrication tasks requiring HSS performance

Key specifications

• Material: high-speed steel (HSS) with titanium nitride (TiN) coating
• Diameter: 3.0 mm
• Shank type: straight (cylindrical) shank
• Geometry: DIN 338 point and flute profile
• Common applications: metal drilling, workshop use

How to use

Clamp the straight shank securely in the drill chuck or collet, ensuring concentric mounting to minimize runout. Select an appropriate spindle speed for the material being drilled — higher speeds for non-ferrous metals, moderate speeds for steels — and apply steady feed pressure without forcing the bit. Use cutting fluid or lubricant when drilling ferrous materials to reduce heat and prolong tool life. Withdraw periodically to clear chips when drilling deep holes in order to maintain efficient chip evacuation.

Usage recommendations

For best results, use this HSS TiN-coated bit with light and consistent feed rates and appropriate cutting fluid when working with steel. Replace the bit if you notice excessive wear or chipping on the cutting lips to preserve hole quality. Store in a dry tool case to protect the coating and cutting edges.