3M 7000028206 Cubitron Ii 982C Fibre Disc 4 Inch 60 Grit

Product Description

The 3M 7000028206 is a Cubitron II 982C coated fibre disc engineered for medium and high-pressure grinding applications on carbon steel. It uses 3M Precision-Shaped Grain, a triangular ceramic abrasive that maintains sharp cutting points throughout its service life. Compared to conventional fibre discs, this disc delivers up to twice the cut rate and significantly longer disc life while requiring less downforce from the operator. The result is reduced fatigue on long grinding runs and more parts completed per disc. It is rated to 15,000 RPM and fits a 4-inch disc grinder.

This disc is suited for weld grinding, beveling, and surface blending on carbon steel in fabrication shops, structural steel work, and manufacturing environments. The stiff fibre backing and strong resin bond hold up under heavy lateral pressure and resist tearing during aggressive stock removal. It performs in manual hand-grinding setups as well as robotic and pressure-assisted grinding systems, making it a practical choice for both one-off repair work and high-volume production lines.

Key Features

• 3M Precision-Shaped Grain cuts fast with less operator pressure, reducing fatigue on extended grinding tasks
• Triangular ceramic grain wears evenly and runs cooler than conventional ceramic abrasives, lasting up to twice as long
• Stiff fibre backing and strong resin bond resist tearing under heavy weld grinding and beveling loads
• Compatible with manual, robotic, and pressure-assisted grinding applications
• Fewer disc changes needed per shift, reducing downtime and changeout interruptions

Compatibility

Designed for use on 4-inch angle grinders and disc grinders rated to 15,000 RPM or higher; intended for grinding carbon steel in fabrication, structural, and manufacturing applications.

Installation Notes

Fibre discs of this type are installed and replaced by the operator or maintenance technician using a compatible backing pad matched to the disc diameter. Before mounting or removing the disc, ensure the grinder is powered off and disconnected from its power source. Verify the tool's rated RPM meets or exceeds the disc's maximum speed rating before operation. Inspect the disc for damage or delamination before each use and do not use damaged discs.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 60
• Maximum Speed: 15,000 RPM
• Abrasive Type: Precision-Shaped Ceramic Grain
• Backing: Coated Fibre
• Unit of Measure: Each
• Weight: 0.04 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000028206