Diamond Sanding Belts – Lapidary & Stone Sanding Belts

Professional diamond sanding belts for lapidary belt sanders, expanding drum systems, and stone finishing machines. Electroplated and resin bond diamond belts deliver superior cutting life and consistent performance on agate, jasper, granite, glass, and hard abrasive stone — available in standard lapidary belt sizes from coarse to fine pre-polish grits.

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Belt Specifications

Related Tools

• Flexible Sanding Belts
• Expanding Drum Belts
• Abrasive Accessories
• Cab Machines
• Grinding Accessories

Frequently Asked Questions

• Q: What size diamond sanding belt do I need for my cab machine?
  A: Most lapidary cab machines use 6" x 2.5" belts for expanding drum attachments. Check your machine and drum specifications before ordering.
• Q: How long do diamond sanding belts last compared to silicon carbide belts?
  A: Diamond belts typically last 5–10x longer than silicon carbide belts on hard stone. They maintain consistent cutting performance throughout their life rather than degrading rapidly like conventional abrasive belts.
• Q: Can diamond sanding belts be used wet?
  A: Yes — wet use with water coolant is recommended for diamond sanding belts. It extends belt life, reduces heat, and produces a better surface finish on stone and glass.