• Computer Science
  • Published 2006

Paper crusher cutter-blade with projected point

  title={Paper crusher cutter-blade with projected point},
The utility model relates to a paper shredder knife with bumps, comprising two separate knives assembly back to back. The utility model is characterized in that a fixing hole is provided in the center of the separate knife. Two or above edges are provided surrounding the knife. The edges of the two separate knives tilt at a certain angle along the peripheral direction, and the two separate knives both have two or above bumps made by stamping forming on the face to face surfaces. The bumps on… CONTINUE READING

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