High-quality HSS-E Cobalt spiral drill bit set

This 170-piece spiral drill bit set is made from HSS-E (High-Speed Steel with 5% cobalt), providing extra hardness and heat resistance. This makes the bits ideal for drilling into hard-to-machine materials such as stainless steel, spring steel, and titanium alloys.

Comprehensive set for various applications

The set includes drill bits in the following sizes:

• Ø 1.0 mm to 8.0 mm in 0.5 mm increments, 10 pieces each
• Ø 8.5 mm to 10.0 mm in 0.5 mm increments, 5 pieces each

This variety of sizes offers flexibility for a wide range of drilling tasks.

Technical specifications

• Point angle: 135° with split point (cross grinding) according to DIN 1412-C, ensuring precise centering and reduced slipping during drilling.
• Standardization: Complies with DIN 338, guaranteeing high quality standards.
• Surface finish: Gold-colored, indicating the presence of cobalt and contributing to the durability of the bits.

Durability and performance

Thanks to the cobalt alloy, these bits withstand high temperatures and wear, resulting in longer lifespan and consistent performance, even with intensive use.

Suitable for various materials

These bits are specially designed for drilling in:

• Stainless steel (RVS)
• Spring steel
• Titanium and titanium alloys
• Other hard-to-machine steels with a tensile strength up to 1,000 N/mm²

Practical storage case

The bits come in a sturdy ABS plastic case with a transparent lid, making it easy to find the right size and store the bits safely.

Areas of application

This set is ideal for professionals in metalworking, the automotive sector, and other industries where precision drilling in hard metals is required.

Maintenance tips

For optimal performance and longer bit life, the use of cutting oil is recommended during drilling. This reduces friction and heat development, minimizing wear.

Summary

With this 170-piece HSS-E Cobalt spiral drill bit set, you have a comprehensive and durable solution for all your precision drilling tasks in hard metals.