Precision Grinding & Sharpening
sharpening sales & service of industrial machine knives

Custom Manufacturing

Precision Grinding and Sharpening is the largest manufacturer of replacement knives, spacers and cleaning fingers for high torque, low speed shredders in North America. Consistent investment in the latest equipment for our milling, grinding and heat-treating operations allow us to produce the highest quality shredder tooling in North America.

By drawing on our years of experience in the field with our customers, our highly qualified design team can provide advice and guidance on your specific application to determine the optimal material and design criterion.

We currently have more than 50 tenured and dedicated craftsmen that ensure your shredder knives, spacers and fingers are of the highest quality and built to your exacting specifications. Our standard is to hold tolerances to under 0.0005".

We use our proprietary PG 1 hard facing on the majority of the knives we manufacture. This exclusive metallurgical composition was developed after years of research and development in real world testing.

Utilizing our proprietary materials and processes, that exceed OEM specifications, we can provide you with the most durable, longest lasting shredder knives available.


Request a Quote

Contact one of our knowledgeable sales professionals to create a quote customized to your needs.

We can manufacture replacement knives for all low speed, high torque shredders, including but not limited to the following brands.

  • SSI
  • Shred-Tech
  • Saturn
  • Weima
  • Untha
  • Mitts & Merrill
  • Satrind
  • Erdwich
  • ERS
  • Eidal
  • Artech
  • BCA
  • Prdator
  • Raptor
  • American Pulverizer
  • Jordan