High-quality HSS-S twist drills for precise metalworking

This set of 10 twist drills with a diameter of 4.1 mm is made from high-quality High-Speed Steel (HSS-S), ensuring excellent performance when drilling in various metals. The precision-ground finish guarantees a sharp cutting edge and a smooth drilling experience.

Technical specifications

• Diameter: 4.1 mm
• Total length: 75 mm
• Spiral length: 43 mm
• Point angle: 118°
• Shank type: Cylindrical
• Standard: DIN 338

Application possibilities

These twist drills are particularly suitable for drilling in:

• Unalloyed and alloyed steel up to 1,000 N/mm²
• Soft cast iron
• Copper
• Brass
• Plastics

They are less suitable for stainless steel (INOX) with a tensile strength up to 850 N/mm² and other hard materials.

Advantages of the ground finish

• Precision: The ground finish provides a sharp cutting edge, resulting in precise and clean drill holes.
• Efficiency: Thanks to the cross-grinding from 1.0 mm, pre-drilling is often unnecessary, saving time.
• Durability: The use of HSS-S material offers a longer lifespan and maintains the sharpness of the drill when used correctly.

Suitable for various drilling machines

These twist drills with cylindrical shank are compatible with most drilling machines and drill stands, making them versatile for both professional and DIY environments.

Maintenance and usage tips

• Cooling: Preferably use a suitable coolant to prevent overheating and extend the drill's lifespan.
• Speed: Adjust the drilling speed based on the material to be drilled for optimal results.
• Pressure: Apply even pressure during drilling to prevent drill breakage.

With this set of 10 high-quality twist drills, you are assured of precision and reliability for all your metalworking projects.