ALPEN HSS Cobalt Twist Drill Bit, 2x49mm, DIN 338 RN, 3-Flat Shank

The ALPEN HSS Cobalt twist drill bit is a high-performance precision tool engineered for demanding drilling applications in hard materials. With a diameter of 2mm and a total length of 49mm, this drill bit is manufactured according to the DIN 338 RN standard, ensuring consistent quality and dimensional accuracy. The inclusion of a 3-flat shank design provides a superior grip within the drill chuck, effectively eliminating slippage during operation and enhancing torque transmission.

Advantages

This cobalt-alloyed drill bit offers exceptional heat resistance, which is critical when working with high-strength materials that generate significant friction. The robust construction ensures long-lasting durability and maintains sharpness over extended periods of use. By utilizing a specialized geometry, the bit delivers clean, precise holes while reducing the risk of drill bit breakage or wandering during the initial contact phase.

Suitable for

• Drilling into stainless steel and alloyed steels
• Metalworking and industrial fabrication tasks
• Precision drilling in hard cast iron
• General maintenance and repair work requiring high-strength bits

When it may not be suitable

This drill bit is specifically optimized for hard metals and may experience premature wear if used extensively on soft materials like wood or plastics, where high-speed steel bits without cobalt content might be more cost-effective. It is not intended for masonry or concrete drilling applications.

Key specifications

• Diameter: 2mm
• Total length: 49mm
• Material: Cobalt-alloyed high-speed steel
• Shank type: 3-flat shank
• Standard: DIN 338 RN

How to use

To achieve the best results, ensure the drill bit is securely tightened in the chuck, utilizing the 3-flat shank to align with the chuck jaws. Begin drilling at a low to moderate speed, applying steady, consistent pressure. It is recommended to use a suitable cutting oil or lubricant to dissipate heat and extend the life of the cobalt alloy. Always ensure the workpiece is firmly clamped to prevent movement during the drilling process.

What to consider before purchase

• Verify the chuck capacity of your drill to ensure compatibility with the shank design
• Assess the hardness of the material to confirm that a cobalt-alloyed bit is the appropriate choice
• Ensure the 2mm diameter meets the specific requirements of your project

Usage recommendations: Always wear appropriate eye protection and safety gear when operating power tools. Periodically inspect the bit for signs of dulling or damage to maintain drilling efficiency and safety.