3M 7010299107 Straight Cartridge Roll 240 Grit 5/16 in

Product Description

The 3M 7010299107 is a straight cartridge roll abrasive designed for precision grinding, deburring, and surface blending in tight bores, slots, and contoured areas. Built with aluminum oxide grain on a cloth backing, it delivers consistent cut at 240 grit — a very fine grade suited for finishing passes and light material removal. The roll runs at up to 24,000 RPM, making it compatible with die grinders and pneumatic rotary tools standard in metal fabrication, maintenance, and toolroom environments. Machinists, metal fabricators, and maintenance technicians are the primary users of this consumable.

This cartridge roll is used in applications requiring controlled abrasion inside bores, on curved surfaces, and in recessed areas where flat abrasives cannot reach. At 5/16 inch diameter, it fits mandrels sized for small-bore interior work. Typical applications include deburring drilled holes, blending welds in tight channels, refining inside diameters on machined parts, and surface prep before coating or inspection. It is suited for ferrous and non-ferrous metals in both production shop and field maintenance settings.

Key Features

• 240 grit aluminum oxide grain for very fine finishing and light stock removal
• Cloth backing provides flexibility and durability in contoured and bore applications
• 5/16 inch diameter fits standard small-bore cartridge roll mandrels
• Rated up to 24,000 RPM for use with die grinders and high-speed rotary tools
• Straight profile maintains consistent contact in cylindrical and slot geometries

Compatibility

Designed for use with cartridge roll mandrels accepting a 5/16 inch diameter roll. Confirm mandrel size and arbor compatibility before use.

Installation Notes

Install onto a compatible mandrel following the mandrel manufacturer's torque and seating guidance. Ensure the die grinder or rotary tool is rated for the roll's 24,000 RPM maximum before mounting. Disconnect the tool from its air or power source before changing abrasives. Do not exceed the rated RPM, and inspect the roll for tears or unraveling before each use.