High-quality HSS-E cobalt twist drill set

This 25-piece twist drill set is made from HSS-E (High-Speed Steel with 5% cobalt), providing excellent hardness and heat resistance. This makes the drills ideal for drilling into hard and difficult-to-machine materials such as stainless steel, spring steel, and cast iron.

Extensive size range

The set includes drills with diameters from 1 mm to 13 mm, increasing in 0.5 mm steps. This ensures you always have the right size for every application, offering precision and flexibility in your work.

Technical specifications

• Material: HSS-E with 5% cobalt
• Number of drills: 25 pieces
• Diameter range: 1 mm to 13 mm (in 0.5 mm increments)
• Point angle: 135 degrees
• Shank: Cylindrical

Application possibilities

These drills are specially designed for drilling in:

• Stainless steel (RVS)
• Alloyed and unalloyed steel up to 1000 N/mm²
• Cast iron
• Copper and copper alloys

Advantages of cobalt alloy

The addition of 5% cobalt to the HSS material increases the wear resistance and heat resistance of the drills. This results in a longer lifespan and better performance when drilling into hard materials.

Practical storage case

The drills are supplied in a sturdy metal case, keeping them safely and neatly organized. This makes transport easier and ensures you can always quickly find the right drill.

Suitable for professional use

Thanks to the high quality and durability, these drills are extremely suitable for both professional craftsmen and demanding DIYers who require precision and reliability in their tools.