3M 7100189359 Cubitron Ii 982C Fibre Disc 36 Grit 4.5 in

Product Description

The 3M 7100189359 is a coated abrasive fibre disc in the Cubitron II 982C series, engineered for medium to high-pressure grinding on carbon steel. It uses 3M Precision-Shaped Grain, a triangular ceramic mineral that maintains sharp cutting points throughout the disc life. This design delivers up to twice the cut rate and disc life compared to conventional fibre discs, all while requiring less grinding pressure from the operator. The result is reduced operator fatigue, faster throughput, and more parts completed per disc. The disc features a stiff fibre backing and a strong resin bond built to handle demanding weld grinding and beveling tasks.

This disc is suited for manual, robotic, and pressure-assisted grinding applications in fabrication, metal finishing, and weld prep environments. Its primary application is grinding and blending carbon steel in both light industrial and heavy-duty shop settings. The 4.5-inch diameter fits standard angle grinders common to these trades. Metalworkers, fabricators, and maintenance technicians typically deploy this disc where high material removal rates and extended disc life are priorities on production lines or job sites.

Key Features

• Precision-Shaped Grain holds sharp cutting points longer, reducing grinding pressure and operator fatigue
• Ceramic mineral lasts up to two times longer than conventional ceramic abrasives and wears evenly to run cool
• Stiff fibre backing with strong resin bond resists tearing in high-pressure weld grinding and beveling applications
• Compatible with manual, robotic, and pressure-assisted grinding setups, reducing changeout downtime
• 36 grit rating delivers aggressive stock removal for heavy grinding and initial weld blending passes

Compatibility

Designed for use on carbon steel in medium and high-pressure grinding applications using standard 4.5-inch angle grinders in manual, robotic, and pressure-assisted configurations.

Installation Notes

Mounting and disc changes should be performed by trained personnel with the grinder powered off and unplugged or air supply disconnected. Verify the grinder RPM rating meets or exceeds the disc RPM rating before operation. Wear appropriate PPE including eye protection and gloves. Follow ANSI B7.1 and applicable workplace safety standards when mounting and operating grinding discs.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 36
• Abrasive Type: Precision-Shaped Ceramic Grain
• Backing Type: Stiff Fibre
• Bond Type: Resin
• Application Material: Carbon Steel
• Weight: 8.486 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100189359