3M 3" Radial Bristle Discs

Replace traditional cloth buffs and polishing compounds with these 3M 3" Radial Bristle Discs. The polishing compound is built directly into the bristles, so every use delivers a fresh charge for a consistent, uniform finish. Stack multiple discs together to build custom polishing buffs suited to your workflow — with a recommended minimum of 3 and a maximum of 8 discs per stack.

These larger 3" discs work just like their smaller counterparts, offering a clean, efficient alternative for professional jewelers and metalsmiths. The flexible, cool-running construction minimizes heat buildup during use, protecting delicate work while extending the life of the disc. Seven grits are available, ranging from aggressive cutting to ultra-fine finishing, giving you complete control over every stage of the polishing process.

Sold in packs of 10. Also available in pre-stacked, ready-to-use brushes sold individually (116.551B–116.557B) or as a complete kit of all 7 grits (116.550).

Features

• Built-in polishing compound delivers a fresh charge with every use
• Replaces cloth buffs and loose polishing compounds for a cleaner process
• Flexible, cool-running design minimizes heat transfer to the workpiece
• Stack discs to create custom-thickness polishing buffs
• Long-lasting and economical — suitable for professional production use
• Seven grits available, from 80 grit cutting to 1 micron ultra-fine finishing
• Compatible with polishing motors with tapered spindles

Specifications

Available Options

Notes

• Pre-stacked ready-to-use versions are sold individually as Part #s 116.551B–116.557B.
• A complete kit containing all 7 grits is available as Part # 116.550.
• Some variants contain Titanium Dioxide or Silica — see California Proposition 65 warnings as applicable.