3M 7010327715 Cartridge Roll 320 Grit 3/8 in Aluminum Oxide

Product Description

The 3M 7010327715 is a straight cartridge roll abrasive designed for precision grinding, deburring, and surface finishing in tight-bore and contoured workpiece applications. Built on a cloth backing with aluminum oxide abrasive grain at 320 grit, this roll falls in the very fine grade range — well suited for light material removal and surface refinement rather than aggressive stock removal. Rated to 24,000 RPM, it handles high-speed mandrel-driven operations without compromising integrity. The 3/8 inch diameter profile targets narrow internal diameters and recessed areas where larger abrasives cannot reach.

This cartridge roll is used in metalworking, fabrication, and maintenance environments where internal bore finishing, weld seam blending, and edge deburring are common tasks. It fits standard cartridge roll mandrels and is compatible with die grinders and flexible shaft tools. Typical users include machinists, pipefitters, welders, and toolroom technicians working on ferrous and non-ferrous metal components. The very fine 320 grit makes it particularly useful as a finishing step after coarser stock removal.

Key Features

• 320 grit aluminum oxide grain for very fine surface finishing and light deburring
• Cloth backing provides flexibility and durability under high-speed operation
• Rated to 24,000 RPM for use with high-speed die grinders and mandrel tools
• 3/8 inch diameter fits narrow internal bores and contoured surfaces
• Straight cartridge roll profile for consistent contact in cylindrical and recessed areas

Compatibility

Designed for use with standard cartridge roll mandrels on die grinders and flexible shaft machines rated to accept 3/8 inch diameter straight cartridge rolls.

Installation Notes

Installation is performed by threading the cartridge roll onto a compatible mandrel — ensure the mandrel diameter matches the roll bore before mounting. Verify the tool RPM rating does not exceed 24,000 RPM before operation. Always allow the roll to reach full speed before contacting the workpiece, and inspect the roll for tears or loosening before each use. Eye protection and appropriate PPE are required per OSHA and shop safety standards.