3M 7100080021 Straight Cartridge Roll 80 Grit Aluminum Oxide

Product Description

The 3M 7100080021 is a straight cartridge roll designed for precision grinding and deburring on metal, wood, and composite surfaces. Built with aluminum oxide abrasive on a cloth backing, it delivers consistent stock removal at medium grade (80 grit). The roll mounts on a mandrel and fits into die grinders, straight grinders, and similar rotary tools. With a maximum operating speed of 24,000 RPM, it suits high-speed power tools used in fabrication, weld cleanup, and surface prep. Technicians and machinists reach for this roll when working in tight bores, slots, and contoured areas where flat abrasives cannot fit.

This cartridge roll is suited for metalworking, maintenance, and fabrication applications in both shop and field environments. Common tasks include deburring drilled holes, blending weld seams, and finishing interior radii on machined parts. The cloth backing provides flexibility to conform to curved surfaces without tearing under load. At 80 grit medium grade, it removes material efficiently while leaving a surface finish appropriate for further processing or final inspection. This product is sold individually with a minimum order quantity of 100 units.

Key Features

• Aluminum oxide abrasive for consistent cut rate on ferrous and non-ferrous metals
• 80 grit medium grade balances stock removal with surface finish quality
• Cloth backing adds flexibility for conforming to contoured and curved workpieces
• Rated to 24,000 RPM for use with high-speed die grinders and rotary tools
• 0.25 inch diameter fits standard small-bore mandrels used in precision grinding work

Compatibility

Designed for use with straight mandrels and die grinders that accept 0.25 inch diameter cartridge rolls. Verify mandrel size and tool RPM rating before installation.

Installation Notes

Installation is performed by machinists, metalworkers, and maintenance technicians using die grinders or straight grinders. Power down and disconnect the tool from its power source before mounting or removing the cartridge roll. Thread the roll securely onto the mandrel and confirm it is fully seated before operation. Do not exceed the rated maximum speed of 24,000 RPM, and always wear appropriate eye and face protection during use.