Expanding Drum Belts – Lapidary Sanding Belts for Expanding Drums

Professional sanding belts for lapidary expanding drum attachments on cab machines. Expanding drum belts mount on a rubber expanding drum fitted to the cab machine arbor — providing a versatile sanding surface for cabochon shaping, pre-polish sanding, and surface finishing as an alternative to standard grinding wheels.

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Belt Specifications

Related Tools

• Diamond Sanding Belts
• Flexible Sanding Belts
• Grinding Accessories
• Cab Machines

Frequently Asked Questions

• Q: What is an expanding drum belt?
  A: An expanding drum belt is a sanding belt that mounts on a rubber expanding drum attached to a cab machine arbor. When the machine runs, the drum expands slightly to grip the belt securely, providing a firm sanding surface for cabochon work.
• Q: What size expanding drum belt do I need?
  A: The most common lapidary size is 6" x 2.5" for standard 6" cab machines. Check your expanding drum dimensions before ordering — belt width must match drum width exactly.
• Q: Can I use expanding drum belts wet?
  A: Yes — wet use with water coolant is recommended. It extends belt life, reduces heat on the stone, and produces a better surface finish. Ensure your expanding drum is rated for wet use.