Polishing & Deburring

The unique properties of corncob make Grit-O’Cobs the ideal polishing, deburring and vibratory finishing media. It is the perfect solution for cartridge & casing polishing, automotive parts, plastic parts, nails, staples, nuts and bolts, buttons, rivets and more. Soft, yet abrasive, Grit-O’Cobs will not scratch aluminum or fine brass.

Grit-O’Cobs corncob polishing media works well in both small tumblers and the largest barrel mouth machines.

How to select the right product for your polishing and deburring needs


For most applications, we typically recommend Grit-o’Cobs 2040.

The specific Grit-O’Cobs corncob drying or corncob polishing media should be selected based upon the part in question. As a general guideline, The Grit-O’Cobs grade utilized should be specified by going to the largest size particle that will pass through, without wedging, any opening or slot in the part being processed.



For further assistance, visit our technical specifications page or contact customer service.

Features & Benefits

  • Particle size ranges support variety of uses
  • No silica content
  • Mohs hardness of 4.5
  • Spent material can be reused as a general purpose absorbent
  • Environmentally friendly
  • Biodegradable



Click to download a brochure!