3M 7010325878 Abrasive Belt 77x1 Inch 320 Grit Aluminum Oxide

Product Description

The 3M 7010325878 is a closed-coat aluminum oxide cloth abrasive belt designed for general metalworking applications. At 77 inches long and 1 inch wide, this 320-grit belt fits standard belt grinders and finishing machines used in fabrication and maintenance shops. The aluminum oxide mineral cuts fast and holds up well on ferrous and non-ferrous metal surfaces. The flexible cloth backing allows the belt to conform to contours during dry sanding operations, making it a reliable choice for finish refinement and surface blending work. Licensed trades and shop technicians working on metal finish repair will find this belt consistent across its full run length.

This belt is suited for dry sanding operations on metal surfaces in both production and maintenance environments. Typical applications include repairing metal finishes, blending weld seams, and refining surfaces prior to coating or inspection. The 320-grit rating places it in the fine finishing range, appropriate for final-pass work where surface quality matters. The closed-coat construction ensures consistent mineral coverage, reducing skip marks and uneven scratch patterns across the workpiece.

Key Features

• 320-grit aluminum oxide abrasive for fine metal finishing and surface refinement
• Closed-coat construction delivers consistent mineral coverage and uniform scratch pattern
• Flexible cloth backing conforms to contours for dry sanding applications
• Glue bond formulation supports uniform finishes in dry-use conditions
• Lightweight belt design reduces load on belt grinder motors during extended runs

Compatibility

Designed as a general-purpose replacement belt for standard belt grinders and finishing machines accepting a 77-inch by 1-inch belt configuration in dry metalworking service.

Installation Notes

Belt installation should be performed by qualified shop personnel with the grinder or finishing machine fully powered down and unplugged before changing belts. Verify belt tracking alignment before resuming operation to prevent edge wear or belt failure. Always confirm the machine's maximum belt speed rating is compatible with the abrasive belt prior to use. Eye protection and appropriate PPE are required during grinding and finishing operations.

Technical Specifications

• Belt Length: 77 inches
• Belt Width: 1 inch
• Grit: 320
• Abrasive Mineral: Aluminum Oxide
• Backing Material: Cloth
• Coat Type: Closed Coat
• Bond Type: Glue
• Application: Dry Sanding
• Weight: 0.04 pounds
• UPC: 00051144045419

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010325878