8" x 3" 50000 Grit Resin Bonded Diamond Sanding Belts – Precision Grinding & Polishing Belts for Stone, Glass & Metal

Our 8" × 3" Resin Bonded Diamond Sanding Belt (3" × 25-7/32") delivers ultimate optical mirror polishing across an extra-wide surface area on expandable rubber drum wheels and upright belt sanders. Engineered with sub-micron diamond particles embedded in an elastic resin matrix, it achieves an immaculate, high-refraction optical polish on premium gemstones, precious minerals, and glass art.

• Dimensions: 3" Width × 25-7/32" Length (Fits standard 8" × 3" Expandable Drums)
• Grit: 50000 Grit (Final Optical Mirror Polish)
• Bond Type: Resin Bonded Diamond
• Backing: Heavy-duty flexible cloth backing designed for drum expansion
• Applications: Gemstone cabochons, glass smoothing, ceramic refining, and decorative stone work
• Usage: Recommended for wet use with water coolant to maintain belt longevity and produce a clean scratch pattern