Drill bit for metal Tvardy HSS long 6.0 x 330 mm DIN 1869

Long HSS drill bit for metal Tvardy 6.0 x 330 mm, manufactured to DIN 1869 standards, is intended for drilling through steel and other ferrous and non-ferrous metals. The high-speed steel (HSS) construction offers improved wear resistance and sustained cutting performance under elevated temperatures, making this 330 mm long bit suitable for deep drilling and through-holes where reach and rigidity are required. The 6.0 mm diameter provides a precise hole size for metalworking, fabrication and repair operations when used with compatible drills and drill presses.

Advantages

The Tvardy HSS long drill bit combines heat-resistant high-speed steel with a long flute design to enable effective chip evacuation during deep drilling. Compliance with DIN 1869 ensures consistent geometry and performance characteristics for reliable results. Its solid construction reduces the likelihood of premature wear and maintains sharpness for repeated metal-drilling tasks.

Suitable for

• Drilling through mild and hardened steels
• Creating through-holes in metal sheets and plates
• Deep drilling applications requiring extended reach
• Use with hand drills and drill presses in workshops and maintenance

Key specifications

• Material: high-speed steel (HSS)
• Diameter: 6.0 mm
• Overall length: 330 mm
• Standard: manufactured to DIN 1869 geometry
• Tip/point: split or standard point geometry appropriate for metal drilling (as per DIN 1869)
• Intended use: through-hole and deep-hole metal drilling

How to use

Secure the workpiece firmly and select an appropriate clamping method to prevent movement during drilling. Install the 6.0 mm Tvardy HSS bit into a chuck that can accommodate the long shank and ensure concentric alignment. Use cutting fluid suitable for metal drilling to reduce heat and assist chip removal; apply steady feed pressure and appropriate rotation speed for HSS bits in metal. Withdraw the bit periodically on deep holes to clear chips and allow cooling, maintaining consistent alignment to avoid bit breakage.

Usage recommendations

For best life and performance, use recommended cutting speeds for HSS in the specific metal being drilled, apply suitable coolant or cutting oil, and avoid excessive side loads. Inspect the bit regularly for wear or damage and replace when cutting performance decreases to maintain hole quality and operator safety.