The CORMAK M6–M20 set is a professional tool kit designed for internal threading. It includes DIN 376 taps (for M12 and M16) and DIN 371 taps (for M6, M8, M10) made of HSSE steel. The set also contains an NWKa Ø1–13 mm HSSE drill bit set and a 14-piece ER25 collet set for precise tool guidance and alignment. Additionally, it includes an R-OGK-W25/FZ31 axial compensation holder and an R-FZA31/ER25 adapter, enhancing versatility and performance for both CNC and conventional applications.
| Shank | Drive | D | A | H | M | (–) | (+) | ![]() |
| W25 | FZ31 | 31 | 55 | 63 | M6–M20 | 15 | 15 |
| Size | Collet | H | h | A | d | D | M | ![]() |
| FZA31 | ER25 | 38.5 | 15 | 42 | 31 | 2–16 | M6–M20 |
DIN 376 and DIN 371 HSSE taps for both through and blind holes.
Manufacturer: Cormak

CORMAK JERZY ZALEWSKI
Brzeska 120, 08-110 Siedlce, Poland
phone: +48 501 944 934
export@cormak.pl
phone: +48 609 939 400
export@cormak.pl
phone: +48 609 939 051
export@cormak.pl
phone: +48 609 939 741
export@cormak.pl
The CORMAK M6–M20 set is a professional tool kit designed for internal threading. It includes DIN 376 taps (for M12 and M16) and DIN 371 taps (for M6, M8, M10) made of HSSE steel. The set also contains an NWKa Ø1–13 mm HSSE drill bit set and a 14-piece ER25 collet set for precise tool guidance and alignment. Additionally, it includes an R-OGK-W25/FZ31 axial compensation holder and an R-FZA31/ER25 adapter, enhancing versatility and performance for both CNC and conventional applications.

