Blue ring, HSS-Co, type C

Prime quality for application in series production. Ultra-modern manufacturing technology for maximum productivity.

Application area:

Blind hole for steel

Field of Application:

Screw tap for metric ISO thread DIN 13

Advice:

Up to M 10 DIN 371 (reinforced shaft)/from M 12 DIN 376 (with thin shaft)

Advantages:

Geometry

• Special groove geometry for low-friction chip removal
• Designed for long-chipping materials

Coating/surface

• TiN (titanium nitride) coating to prevent formation of built-up edges, inhibits adhesion of material
• Coating ensures a smoother surface in the groove and in the thread profile
• Surface smoothing ensures reduced torque

Recommended applications

• Cutting speed up to vc = 10–20 m/min
• Use of cooling emulsion 6–8%, oil cooling alternative

Field of use

• Steels up to 1000 N/mm²; construction and case-hardened steels
• Spheroidal cast iron, black malleable iron