3M 7100189586 Cubitron Ii 982C Fiber Disc 80 Grit 4.5 in

Product Description

The 3M 7100189586 is a Cubitron II 982C coated fiber disc engineered for medium to high-pressure grinding on carbon steel. It uses 3M Precision-Shaped Grain, a triangular ceramic abrasive that maintains sharp cutting points throughout the life of the disc. Compared to conventional fiber discs, this grain delivers up to twice the cut rate and significantly longer disc life while requiring less operator pressure. The result is reduced fatigue, fewer disc changes, and higher throughput on demanding grinding and weld-beveling tasks.

This disc is designed for use in manual, robotic, and pressure-assisted grinding applications where consistent material removal on carbon steel is required. Typical use cases include weld grinding, weld beveling, and surface prep on structural steel components. The stiff fiber backing and strong resin bond make it well suited for heavy-pressure applications where tear resistance and dimensional stability are critical. At 4.5 inches in diameter with an 80 grit rating, it fits standard right-angle grinders used in fabrication, manufacturing, and industrial maintenance environments.

Key Features

• 3M Precision-Shaped Grain cuts fast with less applied pressure, reducing operator fatigue
• Triangular ceramic grain wears evenly, runs cool, and lasts up to twice as long as conventional ceramic abrasives
• Stiff fiber backing with strong resin bond provides tear resistance in high-pressure grinding and beveling
• Compatible with manual, robotic, and pressure-assisted grinder setups
• 80 grit rating suited for aggressive stock removal and weld grinding on carbon steel

Compatibility

Designed as an OEM-style replacement or direct-use fiber disc for standard 4.5-inch right-angle grinders used in carbon steel grinding and weld preparation applications.

Installation Notes

Fiber discs of this type are installed and serviced by fabricators, welders, and industrial maintenance technicians. Always power down and disconnect the grinder before mounting or removing a disc. Verify the grinder RPM rating meets or exceeds the disc RPM rating before use, and inspect the disc for damage prior to each use. Follow applicable ANSI and OSHA abrasive wheel safety standards during mounting and operation.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 80
• Abrasive Type: Precision-Shaped Ceramic Grain
• Backing Type: Coated Fiber
• Application Material: Carbon Steel
• Unit of Measure: Each
• Minimum Order Quantity: 100
• Weight: 9.316 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100189586