The Nord Tools HSS-CO5 DIN 338 Type N metal drill bit with a 2.7 mm diameter is a precision-engineered cutting tool designed for demanding metalworking tasks. Manufactured from high-speed steel alloyed with 5% cobalt, this drill bit offers superior hardness and thermal stability compared to standard HSS bits. Its Type N geometry is optimized for general-purpose drilling, providing a balanced cutting action that maintains structural integrity even when working with challenging materials.
Advantages
The primary benefit of this cobalt-alloyed drill bit is its exceptional heat resistance, which prevents the cutting edge from softening during high-friction operations. This durability ensures that the tool maintains its sharpness over extended periods, reducing the frequency of replacements and improving overall workflow efficiency. The DIN 338 standard compliance guarantees precise dimensions and compatibility with standard drill chucks, ensuring a secure fit and accurate hole placement in various industrial and professional applications.
Suitable for
- Drilling into stainless steel and acid-resistant alloys
- Machining high-tensile steel and cast iron
- Precision metal fabrication and repair work
- General industrial drilling tasks requiring high heat tolerance
When it may not be suitable
This drill bit is specifically optimized for metalworking and may not be the most cost-effective choice for drilling soft materials like wood or plastics, where standard HSS bits would suffice. It is also 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: 2.7 mm
- Material: HSS-CO5 (5% Cobalt alloyed high-speed steel)
- Standard: DIN 338
- Type: N (Normal helix)
- Application: Metal and stainless steel
How to use
To achieve the best results, ensure the drill bit is securely fastened in a stable drill chuck. When drilling into hard metals, it is recommended to use a center punch to create a pilot mark, which prevents the bit from wandering. Apply steady, moderate pressure and maintain a consistent drilling speed. Using a suitable cutting oil or cooling lubricant is highly recommended to dissipate heat and extend the life of the drill bit, especially when working with stainless steel.
What to consider before purchase
- Verify the required hole diameter for your specific project
- Ensure your drilling equipment supports 2.7 mm shank sizes
- Consider purchasing multiple bits if working on large-scale projects
- Check that your drill has variable speed control for optimal metal cutting
Usage recommendations
Always wear appropriate eye protection and secure the workpiece firmly before starting the drilling process to ensure safety and precision.
