Abrasive Expanding Belts

Abrasive Expanding Belts – Silicon Carbide Sanding Belts for Stone, Glass & Metal

Professional silicon carbide sanding belts for expanding drum wheels on lapidary machines, belt sanders, and grinding equipment. Available in 6"x1.5", 6"x2.5", and 8"x3" sizes across a full grit range from 60 to 1000 grit — sold in convenient 10-piece sets for consistent, economical lapidary sanding on stone, glass, ceramic, and metal surfaces. Waterproof backing for wet or dry use.

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Available Sizes & Grits

Belt Size Available Grits Pack Price
6" x 1.5" 60, 80, 100, 180, 240, 400, 600, 800, 1000 10pcs $20.00
6" x 2.5" 60, 80, 120, 240, 400, 600, 800, 1000 10pcs $25.00
8" x 3" 60, 80, 100, 120, 240, 400, 600, 800, 1000 10pcs $30.00

Key Features

  • Silicon carbide abrasive for fast, aggressive cutting on hard stone, glass, and metal
  • Waterproof backing — suitable for wet or dry sanding
  • 10-piece sets for economical, consistent lapidary sanding workflows
  • Full grit range from 60 (coarse shaping) to 1000 (fine pre-polish)
  • Compatible with standard expanding drum wheels on lapidary combination machines

Related Tools

Frequently Asked Questions

  • Q: What drum sizes are these belts compatible with?
    A: The 6"x1.5" belts fit 6" x 1.5" expanding drums, the 6"x2.5" belts fit 6" x 2.5" drums, and the 8"x3" belts fit 8" x 3" expanding drums. Always verify belt dimensions match your specific drum size before ordering.
  • Q: Can these belts be used wet?
    A: Yes — the waterproof backing makes these belts suitable for both wet and dry sanding. Wet use is recommended for lapidary stone work to reduce heat, prevent dust, and extend belt life.
  • Q: What grit should I start with for sanding a rough cabochon?
    A: Start with 60–80 grit to shape and remove saw marks, progress through 120, 240, 400, and 600 grit for surface smoothing, then finish with 800–1000 grit before moving to polishing pads for the final mirror finish.