BLACK RING

BLACK RING
BLACK RING Machine taps
The VOELKEL HSS-E machine taps with black ring are especially suitable for cast iron (GG) and spheroidal cast iron (GGG).
More recommended applications:
- Brass and bronze, short-chipping
- Plastics, thermosetting
Machine taps with nitrided surface:
The surface hardness is increased by enriching the surface of the tap with nitrogen. This results in high abrasion resistance and improved anti-friction properties.
Variations:
- Machine taps (black-ring) DIN 371/376 M3-M20
- Taps for cast iron in set of 7 pcs. (M3-M12)
-
11 Variants