- Turned steel roller F521 / 1.2379
- Heat treated in a high vacuum furnace
- With a hardness of 58/62 HRC
- Total tempering to core
- Special sharpening.
- Tolerance ± 0.01.
Turned steel roller F521 / 1.2379, with a cutting blade capable of stamping any mold on cellulose layers. Hardened to the core and hardness of 58/62 HRC, the blades retain their properties despite continued use. Custom made roller for the final FFP2 mask cutting process.
