The Nord Tools DIN 338 HSS-R 10.5 mm Type N twist drill bit is a precision-engineered tool designed for reliable performance in metalworking applications. Manufactured from high-speed steel (HSS) using a rolling process, this drill bit offers a balance of durability and efficiency for standard drilling operations. Its Type N geometry is specifically optimized for drilling materials with normal tensile strength, ensuring consistent results in both professional workshop environments and home improvement projects.
Advantages
This drill bit benefits from a robust HSS construction that maintains its hardness and structural integrity during repeated use. The rolled manufacturing process enhances the material's toughness, making it resistant to breakage under standard operating conditions. Its 10.5 mm diameter is precision-ground to meet DIN 338 standards, providing accurate hole sizing and smooth chip evacuation, which helps to extend the life of the tool and improve the quality of the finished work.
Suitable for
- Drilling into structural steel and carbon steel
- Working with cast iron and non-ferrous metals
- General maintenance and repair tasks
- DIY metal fabrication projects
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-alloy bits to prevent premature wear. It is also not recommended for use with masonry, concrete, or ceramic materials, which require dedicated drill bits with different cutting geometries.
Key specifications
- Diameter: 10.5 mm
- Material: High-speed steel (HSS)
- Standard: DIN 338
- Type: N (Normal helix)
- Finish: Rolled
How to use
To achieve the best results, ensure the drill bit is securely fastened in the chuck of your power drill or drill press. Mark the center of the hole to be drilled using a center punch to prevent the bit from wandering during the initial contact. Apply steady, moderate pressure while maintaining a consistent rotational speed appropriate for the material being drilled. Using a cutting oil or lubricant is recommended to reduce friction and heat buildup, which helps preserve the sharpness of the cutting edges.
What to consider before purchase
- Verify that your drill chuck supports a 10.5 mm shank diameter
- Ensure the material hardness is compatible with standard HSS tools
- Check that your drilling equipment provides sufficient torque for this bit size
Usage recommendations
Always wear appropriate eye protection and safety gear when operating drilling equipment. Regularly inspect the drill bit for signs of wear or dullness, and replace it if the cutting performance decreases to ensure safety and precision.
