3M 7100143018 Full Taper Cartridge Roll 240 Grit 3/8 in

Product Description

The 3M 7100143018 is a full taper cartridge roll designed for precision grinding, deburring, and surface finishing on metal and other hard materials. Built on a heavyweight X-weight cloth backing, this roll delivers durability and conformability in tight spaces. The abrasive material is aluminum oxide at 240 grit, placing it firmly in the very fine grade range. Full taper geometry allows the roll to conform to contoured surfaces, internal diameters, and recesses where flat abrasives cannot reach. Machinists, tool and die technicians, and fabrication professionals use these rolls mounted on mandrels in die grinders or drill presses for finish work requiring tight dimensional control.

This cartridge roll is suited for fine finishing passes on ferrous and non-ferrous metals, deburring drilled or machined holes, and blending weld areas in confined geometry. The 3/8 inch maximum diameter makes it appropriate for small-bore internal work and detailed surface preparation. It is a single-unit package, sold in minimum order quantities of 100 units, making it practical for shop stock or production line use where consistent abrasive supply is required.

Key Features

• 240 grit aluminum oxide abrasive for very fine surface finishing
• Full taper design conforms to contoured surfaces and internal profiles
• X-weight cloth backing provides strength and flexibility during extended use
• 3/8 inch maximum diameter fits small-bore and detail grinding applications
• Single-unit package sold in multiples of 100 for production shop stocking

Compatibility

Designed for use with standard mandrel-mounted die grinders and rotary tools that accept cartridge rolls up to 3/8 inch maximum diameter. Confirm mandrel size and arbor compatibility before mounting.

Installation Notes

Cartridge rolls are installed by a machinist or fabricator onto a compatible tapered or straight mandrel using a die grinder or drill press. Ensure the tool is powered off and disconnected before mounting or removing the roll. Do not exceed the maximum RPM rating of the mandrel or tool. Wear appropriate eye and face protection during grinding operations per applicable workplace safety standards.