3M 7100139907 Ceramic Cartridge Roll 80 Grit

Product Description

The 3M 7100139907 is a ceramic grain cartridge roll built for aggressive material removal in tight spaces and contoured surfaces. Constructed on an X-weight cloth backing and resin bonded for heat resistance, this roll delivers consistent cut rates across metal grinding and finishing applications. The ceramic abrasive grain is paired with a grinding aid that reduces heat buildup at the workpiece, extending abrasive life and helping maintain part geometry. At 0.25 inches wide, 1 inch in length, and 0.125-inch mandrel bore, it fits standard mandrel-mounted die grinder setups used by fabricators and maintenance technicians.

This cartridge roll is suited for weld blending, deburring, and surface prep on steel, stainless steel, and hard alloys. The compact 0.25 inches x 1 inches profile allows work inside bores, slots, and contoured areas where larger abrasives cannot reach. It is a practical choice for tool-and-die work, metal fabrication shops, and MRO applications requiring precise stock removal in restricted geometry. Sold in minimum quantities of 100 rolls per the manufacturer unit of measure.

Key Features

• Ceramic abrasive grain for high cut rate and long service life on ferrous and hard metals
• X-weight cloth backing provides durability under moderate to heavy grinding pressure
• Resin bond construction resists heat generated during aggressive grinding cycles
• Integrated grinding aid promotes cooler grinding and reduces loading on the abrasive surface
• Compact 0.25 inches x 1 inches x 0.125 inches size fits standard mandrel-mount die grinders
• 80 grit rating balances material removal speed with surface finish quality

Compatibility

Designed for use with standard mandrel-mounted die grinders and rotary tools that accept 0.125-inch shank mandrels. Typical applications include weld blending and deburring on ferrous metals and hard alloys.

Installation Notes

Mount the cartridge roll onto a compatible 0.125-inch shank mandrel and secure per the mandrel manufacturer torque guidance before use. Ensure the die grinder RPM rating meets or exceeds the maximum rated speed marked on the abrasive product packaging. Wear appropriate PPE including face shield and gloves during operation. Inspect the roll for damage before each use and discard if the backing shows fraying or separation.

Technical Specifications

• Grit: 80
• Abrasive Grain: Ceramic
• Backing Weight: X-weight cloth
• Bond Type: Resin
• Width: 0.25 inches
• Length: 1 inch
• Bore Diameter: 0.125 inches
• Unit of Measure: Roll
• Minimum Order Quantity: 100
• UPC: 00051144807932

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100139907