This is a list of indicators that your knife needs to be sharpened:

  • During cutting, the knife stops or slows down.
  • The material you are cutting is cut unevenly, i.e not cut to the same length.
  • Cut marks or nicks appear on the cut face of the paper, cardboard or other material.
  • The cut does not appear straight when viewed from above.
  • Damage to the cutting edge of the knife also causes irregularities in the material you are cutting.
  • The blade makes a rough or scratching noise as it cuts the material.

For additional information regarding sharpening your knives, please contact our service department at +386 2 87 07 824 or send us an e-mail: