330mmx25mm 120 Grit Flexible Diamond Sanding Belt – Efficient Polishing & Grinding for Hard Materials

Overview: The 330mmx25mm 120Grit Flexible Diamond Sanding Belt – Efficient Polishing & Grinding for Hard Materials is a professional flexible diamond abrasive belt engineered for mini pneumatic/electric finger sanders, 1-inch portable belt sanders, and contour grinding machines. Featuring electroplated medium-coarse 120-grit diamond particles securely bonded to a high-strength flexible cloth backing, it delivers fast stock removal, uniform beveling, and clean surface shaping on hard, brittle materials across a wide 25mm grinding contact face.

Key Features

• 120 Grit Medium-Coarse Diamond Abrasive: Balances rapid material removal with consistent surface leveling on ultra-hard materials.
• Wide 25mm Profile & 330mm Belt Loop: Perfectly fits 330mm×25mm (13" × 1") mini belt grinders and contour finishing attachments.
• Flexible Tear-Resistant Cloth Backing: Flexes smoothly over platen beds and contact wheels without creasing or delaminating.
• Heavy-Duty Precision Splice: Bi-directional smooth joint ensures continuous tracking stability and minimal vibration at high operating speeds.

Applications

• Lapidary pre-forming, cabochon rough shaping, and gemstone edge beveling
• Glass edging, arrissing, and deburring on flat sheets and curved art glass
• Stock removal and profile smoothing on tungsten carbide, hardened tool steels, and thermal coatings
• Surface leveling on technical ceramics, porcelain tiles, and composite workpieces

Operating Guidelines

• Coolant: Wet operation with continuous water mist or lubricant is strongly recommended to prolong belt life and minimize grinding dust.
• Tracking: Adjust belt tension properly to prevent slipping on finger sander contact wheels.
• Recommended Speed: 3,000 to 5,500 SFPM for high cutting rates and smooth surface finishes.