3M 7100127589 Straight Cartridge Roll 80 Grit Ceramic

Product Description

The 3M 7100127589 is a straight cartridge roll designed for precision grinding, deburring, and surface finishing on metal and other hard materials. Built with a ceramic abrasive at 80 grit, this cartridge roll delivers consistent, aggressive stock removal while resisting premature breakdown under load. The roll measures 3/8 inches in diameter and 1-1/2 inches in overall length, with a 1/8-inch pilot hole for mandrel mounting. It is rated to 24,000 RPM, making it suitable for use with high-speed die grinders and rotary tools. Machinists, fabricators, and maintenance technicians use this type of abrasive for tight-tolerance work in bores, ports, and contoured surfaces.

This cartridge roll is well suited for interior bore finishing, weld blending in confined areas, and deburring drilled or reamed holes in metal components. The 80-grit ceramic construction makes it appropriate for moderate to aggressive material removal passes before transitioning to finer finishing grits. It is commonly used in metalworking shops, maintenance and repair operations, and fabrication environments where die grinder access is required in tight spaces.

Key Features

• Ceramic abrasive for aggressive cut rate and extended abrasive life
• 80 grit for moderate to aggressive stock removal and surface conditioning
• 3/8-inch diameter fits standard mandrels for die grinder use
• 1/8-inch pilot hole for secure mandrel mounting
• Rated to 24,000 RPM for compatibility with high-speed rotary tools
• 1-1/2-inch overall length provides reach in bores and recessed surfaces

Compatibility

Designed for use with straight cartridge roll mandrels accepting a 1/8-inch pilot hole, compatible with standard die grinders and rotary tools rated at or above 24,000 RPM.

Installation Notes

This cartridge roll is installed by a machinist or metalworking technician onto a compatible mandrel threaded or pressed into the pilot hole. Before mounting, confirm the die grinder or rotary tool is unplugged or the air supply is disconnected. Do not exceed the 24,000 RPM rated speed of the roll. Inspect the roll for damage before each use and replace if the abrasive shows uneven wear, delamination, or core deformation.