3M 7000045164 Cubitron Ii 987C Fibre Disc 80 Grit 9.125 in

Product Description

The 3M 7000045164 is a Cubitron II 987C coated fibre disc engineered for medium to heavy-duty grinding, beveling, and material removal on metal and alloy surfaces. Built around 3M Precision-Shaped Grain technology, the disc maintains sharp cutting points throughout its service life, delivering a higher cut rate with less applied pressure than conventional abrasive fibre discs. The stiff fibre backing and strong resin bond hold up under high-pressure weld grinding conditions, while an integrated grinding aid limits heat buildup during operation on heat-sensitive alloys. The disc measures 9.125 inches in diameter, runs at a maximum of 6,600 rpm, and carries an 80 grit rating for aggressive stock removal.

This disc is suited for fabrication shops, weld grinding stations, and robotic or pressure-assisted grinding setups where consistent cut rate and extended disc life reduce changeover time. Typical applications include weld seam removal, surface preparation, and edge beveling on structural steel, stainless steel, and similar alloys. The combination of Precision-Shaped Grain and fibre backing makes it a practical choice for production environments running high-volume parts where fewer disc changes translate directly to uptime gains.

Key Features

• 3M Precision-Shaped Grain holds sharp cutting points longer, cutting faster with less grinding pressure
• Stiff fibre backing and strong resin bond provide tear resistance in high-pressure weld grinding and beveling
• Integrated grinding aid reduces heat generation, protecting heat-sensitive alloys during extended runs
• Higher cut rate and longer disc life reduce changeover frequency in robotic and pressure-assisted applications
• 80 grit rating targets medium to heavy stock removal and weld seam cleanup

Compatibility

Designed for use with standard 9-inch angle grinders and fibre disc backup pads rated for grits up to 6,600 rpm in medium to heavy-duty grinding and beveling operations.

Installation Notes

Mounting and disc changes must be performed by qualified personnel with the grinder powered off and unplugged or locked out per applicable OSHA lockout/tagout procedures. Verify the backup pad diameter and rpm rating match or exceed the disc rating before mounting. Inspect the disc for damage before each use and do not exceed the 6,600 rpm maximum operating speed. Eye protection, hearing protection, and appropriate PPE are required during all grinding operations.

Technical Specifications

• Disc Diameter: 9.125 inches
• Grit: 80
• Maximum Speed: 6,600 rpm
• Abrasive Type: Precision-Shaped Grain (Cubitron II)
• Backing Type: Stiff Fibre
• Bond Type: Resin
• Construction: Coated
• Package Dimensions: 12.71 x 10.7 x 10.95 inches
• Weight: 0.18 pounds
• UOM: Each
• UPC: 00051141276601

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000045164