3M 7100208163 Cubitron Ii Fibre Disc 982C 4 Inch 36 Grit

Product Description

The 3M 7100208163 is the Cubitron II Fibre Disc 982C, a coated abrasive disc engineered for aggressive material removal on carbon steel and similar metals. Built around 3M Precision-Shaped Grain technology, this disc delivers up to twice the cut rate and service life of conventional fiber discs. The triangular ceramic grain maintains sharp cutting points throughout its life, wearing evenly and running cool to reduce heat buildup at the work surface. Rated at 15000 RPM, the 4-inch disc suits angle grinders commonly used in weld grinding, beveling, and heavy stock removal. Installation and use are handled by metal fabricators, welders, and maintenance technicians.

This disc is suited for medium- and high-pressure grinding applications in fabrication shops, structural steel work, and maintenance environments. It performs in manual handheld operation, pressure-assisted grinding setups, and robotic grinding cells. The stiff fiber backing and strong resin bond resist tearing under the load demands of weld grinding and beveling. The 36-grit designation targets aggressive stock removal rather than finishing, making it appropriate where fast cut rate and disc longevity matter more than surface finish refinement.

Key Features

• 3M Precision-Shaped Grain cuts fast with less operator pressure, reducing fatigue during extended grinding sessions
• Triangular ceramic grain lasts up to twice as long as conventional ceramic abrasives
• Stiff fiber backing and resin bond provide tear resistance in heavy weld grinding and beveling
• Compatible with manual, robotic, and pressure-assisted grinding applications
• Even grain wear keeps the disc running cool and maintains cut consistency across disc life
• Fewer disc changes reduce downtime and increase throughput per shift

Compatibility

Designed for use with 4-inch angle grinders and disc grinders rated at or above 15000 RPM, primarily for grinding carbon steel in fabrication and weld finishing applications.

Installation Notes

Mounting and operation should be performed by trained personnel familiar with abrasive wheel safety per ANSI B7.1 standards. Verify the grinder RPM rating meets or exceeds the 15000 RPM disc rating before mounting. Inspect the disc for damage before each use and never exceed the rated speed. Appropriate PPE including face shield, gloves, and hearing protection is required during operation.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 36
• Maximum RPM: 15000 RPM
• Abrasive Type: Precision-Shaped Ceramic Grain
• Backing: Coated Fiber
• Application: Carbon Steel Grinding and Beveling
• Package Weight: 5.065 pounds
• Package Length: 11.13 inches
• Package Width: 8 inches
• Package Height: 6.69 inches
• Unit of Measure: Each
• UPC: 638060297396

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100208163