The Nord Tools DIN 338 HSS-R Type N twist drill bit with a 3.3 mm diameter is a precision-engineered tool designed for reliable performance in various metalworking applications. Manufactured from high-speed steel using a rolling process, this drill bit offers a robust construction that maintains its integrity during repeated use. Its standard Type N geometry is optimized for drilling in common materials, providing a balance between cutting speed and tool longevity.
Advantages
The primary advantage of this HSS-R drill bit lies in its rolled manufacturing process, which improves the structural strength of the steel compared to machined alternatives. The Type N design ensures versatile performance across a wide range of standard drilling tasks, while the DIN 338 compliance guarantees compatibility with standard drill chucks and machinery. This tool is built to withstand the thermal stresses encountered during metal drilling, ensuring consistent hole quality and efficient chip evacuation.
Suitable for
- Drilling holes in mild steel and carbon steel
- General metalworking in professional workshops
- DIY home improvement and repair projects
- Creating pilot holes for larger fasteners
When it may not be suitable
This drill bit is not recommended for drilling hardened, high-alloy, or stainless steels, as these materials require specialized cobalt-alloy bits to prevent premature wear. It is also not intended for use on masonry, concrete, or ceramic surfaces.
Key specifications
- Diameter: 3.3 mm
- Material: High-Speed Steel (HSS-R)
- Standard: DIN 338
- Type: N (Normal helix)
- Manufacturing process: Rolled
How to use
To achieve the best results, ensure the drill bit is securely tightened 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 and maintain a consistent drilling speed suitable for the material being processed. Using a cutting oil or lubricant is recommended to reduce friction and heat, which significantly extends the life of the drill bit and improves the finish of the hole.
What to consider before purchase
- Verify that your drill chuck supports a 3.3 mm shank diameter
- Ensure the material hardness is compatible with HSS-R specifications
- Consider purchasing a set if you require multiple hole sizes for your project
Usage recommendations
Always wear appropriate eye protection when drilling metal. Regularly inspect the cutting edge for signs of dulling or chipping, and replace the bit if performance decreases to avoid damaging the workpiece.
