8" x 3" 140 Grit Resin Bonded Diamond Sanding Belts – Precision Grinding & Polishing for Stone, Glass & Metal

Our 8" × 3" Resin Bonded Diamond Sanding Belt (3" × 25-7/32") provides intermediate shaping and aggressive scratch cleanup across an extra-wide surface area on expandable rubber drum wheels and upright belt sanders. Engineered with 140 grit diamond abrasives securely embedded in a resilient resin matrix, it rapidly blends coarse grinding marks and establishes true cabochon domes, glass chamfers, and stone bevels.

• Dimensions: 3" Width × 25-7/32" Length (Fits standard 8" × 3" Expandable Drums)
• Grit: 140 Grit (Intermediate Shaping & Coarse Cleanup)
• Bond Type: Resin Bonded Diamond
• Backing: Heavy-duty flexible cloth backing designed for drum expansion
• Applications: Cabochon dome shaping, edge smoothing, pre-smoothing hard minerals, and glass bevel refinement
• Usage: Recommended for wet use with continuous water coolant for maximum belt longevity