The Nord Tools DIN 338 HSS-R 8.0 mm twist drill bit is a professional-grade tool engineered for precision and efficiency in metalworking. Designed as a Type N drill bit, it features a standard spiral geometry suitable for a wide range of general-purpose drilling applications. Constructed from high-speed steel (HSS) using a rolling process, this drill bit offers a balance of hardness and toughness, ensuring consistent performance in demanding workshop environments.
Advantages
This drill bit stands out due to its robust construction and reliable material composition. The high-speed steel material provides excellent heat resistance, allowing the bit to maintain its sharpness during prolonged use. The rolled manufacturing process enhances the structural integrity of the steel, making it more resistant to breakage under standard operating conditions. Its precise 8.0 mm diameter ensures accurate hole sizing, which is essential for professional assembly and fabrication tasks.
Suitable for
- Drilling into unalloyed and alloyed steel
- Working with grey cast iron and malleable cast iron
- Processing non-ferrous metals such as aluminum and copper
- General workshop maintenance and industrial fabrication
When it may not be suitable
This drill bit is not intended for drilling into hardened or high-alloy steels, as these materials require specialized cobalt-alloyed bits to prevent premature wear. It is also not recommended for use with masonry, concrete, or ceramic materials, as the cutting geometry is specifically optimized for metal surfaces.
Key specifications
- Diameter: 8.0 mm
- Material: High-Speed Steel (HSS)
- Standard: DIN 338
- Type: N (Normal spiral)
- Finish: Rolled
How to use
To achieve the best results, secure the workpiece firmly in a vice or clamp to prevent vibration. Insert the drill bit into the chuck of your power drill or drill press, ensuring it is tightened securely. Apply consistent, moderate pressure while maintaining a steady drilling speed appropriate for the material being processed. It is recommended to use a suitable cutting oil to reduce friction, dissipate heat, and extend the lifespan of the drill bit.
What to consider before purchase
- Verify that your drill chuck supports an 8.0 mm shank diameter.
- Ensure the material you intend to drill is compatible with HSS-R specifications.
- Consider purchasing a set if you require multiple sizes for varied tasks.
Usage recommendations
Always wear appropriate eye protection when drilling. Regularly clear metal chips from the hole to prevent overheating and ensure a clean finish. If the drill bit becomes dull, replace it to maintain accuracy and prevent damage to the workpiece.
