How long the sharpness can stay?

  • Jimmy at
  • September 06, 2019

We don’t calculate the service life in days. We calculate the service life in cutting times. We promise the service life in different steel as below.


9Cr13CoMoV                   100 000.00 times
China 440C                      150 000.00 times
Japan 440C                      300 000.00 times
Japan VG10                      500 000.00 times