330mmx8mm Flexible Diamond Sanding Belt ¨C Efficient Polishing & Grinding for Hard Materials

Overview: The 330mm x 8mm Flexible Diamond Sanding Belt (approx. 13" length x 5/16" width) is a precision micro-abrasive belt engineered for handheld pneumatic air belt sanders, mini file sanders, and intricate detail grinding machines. Electroplated industrial diamond crystals bonded securely to a flexible, high-strength waterproof backing provide concentrated pinpoint cutting pressure, rapid deburring, and smooth finishing in tight recesses, deep cavities, and complex contours.

Key Features

• Full Range of Grits & Patterns: Available in Dot and Arrow patterns from coarse 60 Grit shaping up to 1800 Grit ultra-fine polishing.
• Miniature 8mm (5/16") Width: Perfectly sized for standard 330x10mm and 330x8mm air file sanders and finger belt sanders.
• High-Flexibility Waterproof Backing: Designed to bend effortlessly around micro contact arms, tight guide rollers, and narrow pulleys without cracking or delamination.
• Ultra-Smooth Joint: Low-profile splice eliminates bouncing, vibration, and chatter marks during high-RPM precision work.

Applications

• Detail glass arrising, bottle neck deburring, and decorative glass cold-working
• Lapidary gemstone carving recesses, cabochon detail smoothing, and jewelry making
• Ceramic sculpting, porcelain mold touch-ups, and dental composite finishing
• Turbine blade edge deburring, thermal spray coating finishing, and weld seam leveling

Operating Guidelines

• Coolant: Use with continuous water mist or light coolant spray when feasible to prevent diamond thermal wear and clear fine swarf.
• Tension & Tracking: Adjust air tool tensioning arm to avoid over-stretching the narrow belt.
• Speed: Recommended speed 2,500 to 4,500 SFPM on pneumatic or electric finger sanders.