3M 7010363869 Cartridge Roll 1/2 in 120 Grit Fine

Product Description

The 3M 7010363869 is a full taper cartridge roll designed for precision grinding and finishing on metal, wood, and composite surfaces. Built with aluminum oxide abrasive on an X-weight cloth backing, this roll delivers consistent cut rates and durability under load. At 1/2 inch maximum diameter and 120 grit, it is sized for detail work in tight contours, weld seams, and internal bore surfaces. Machinists, fabricators, and metal finishing professionals mount these rolls on mandrels in die grinders or straight-line sanders. The full taper profile allows smooth, even contact across curved and irregular geometries without chatter or loading.

This cartridge roll is used in metal fabrication shops, maintenance and repair operations, and production grinding applications where controlled material removal and surface refinement are required. The 120 grit fine grade makes it well-suited for intermediate finishing passes after coarser stock removal, blending surface transitions, and preparing workpieces for coating or inspection. It performs on ferrous and non-ferrous metals and is commonly used in aerospace, automotive, and general metalworking environments.

Key Features

• Aluminum oxide abrasive provides consistent cut and long service life on metal surfaces
• X-weight cloth backing resists tearing under high-pressure grinding
• Full taper profile conforms to contoured and irregular workpiece geometries
• 120 grit fine grade suited for intermediate finishing and pre-coating surface prep
• 1/2 inch maximum diameter fits standard mandrels in die grinders and rotary tools

Compatibility

Designed for use on mandrel-style die grinders and straight-line pneumatic or electric rotary tools that accept 1/2 inch cartridge rolls. Verify mandrel diameter and arbor speed rating before installation.

Installation Notes

Installation is performed by qualified machinists or metalworking professionals. The cartridge roll must be mounted on a compatible mandrel and seated fully before operation. Always confirm that the tool RPM rating does not exceed the roll's rated maximum speed. Inspect the roll for damage or unraveling before each use and replace if any backing separation is observed.