The Nord Tools DIN 338 HSS-Co5 Type N twist drill bit, with a diameter of 2.6 mm, is a professional-grade cutting tool engineered for high-precision drilling in demanding metalworking environments. Constructed from high-speed steel alloyed with 5% cobalt, this drill bit provides exceptional thermal stability and wear resistance, allowing it to maintain its cutting edge even when working with tough, heat-conductive materials. Its Type N geometry is optimized for standard drilling tasks, ensuring efficient chip removal and consistent performance in various industrial applications.
Advantages
The primary advantage of this cobalt-alloyed drill bit is its superior heat resistance compared to standard high-speed steel tools. This property significantly extends the tool's lifespan when drilling into hard steel or stainless steel, where friction generates substantial heat. The precision-ground tip ensures accurate centering and reduces the need for pilot holes, while the robust construction minimizes the risk of breakage during operation. Its adherence to the DIN 338 standard guarantees compatibility with standard drill chucks and machine tools, making it a reliable choice for professional workshops.
Suitable for
- Drilling into alloyed and unalloyed steel
- Working with stainless steel and acid-resistant steel
- Precision metal fabrication and industrial assembly
- General maintenance and repair tasks involving hard metals
When it may not be suitable
This drill bit is specifically optimized for metalworking and may not be the most efficient choice for drilling into soft materials like wood or plastic, where standard HSS bits are often sufficient and more cost-effective. Additionally, it is not intended for masonry or concrete applications, as the cutting geometry and material composition are not designed to withstand the impact forces associated with stone drilling.
Key specifications
- Diameter: 2.6 mm
- Material: HSS-Co5 (5% Cobalt alloyed high-speed steel)
- Standard: DIN 338
- Type: N (Normal helix)
- Application: Metal drilling
How to use
To achieve the best results, ensure the drill bit is securely fastened in a high-quality drill chuck. Before starting, mark the drilling point with a center punch to prevent the bit from wandering. Apply steady, moderate pressure and maintain a consistent drilling speed appropriate for the material hardness. It is highly recommended to use a suitable cutting oil or coolant to dissipate heat and improve the surface finish of the hole, especially when working with stainless steel. Periodically retract the bit to clear metal chips from the flutes.
What to consider before purchase
- Verify that your drill chuck supports a 2.6 mm shank diameter.
- Ensure the material you are drilling is compatible with cobalt-alloyed tools.
- Consider purchasing a depth stop if you require precise hole depths.
Usage recommendations
Always wear appropriate eye protection and safety gear when operating drilling equipment. To maximize the longevity of the cobalt-alloyed steel, avoid overheating the bit by using appropriate cutting speeds and cooling lubricants during continuous drilling operations.
