3M 7100110344 Cubitron Ii 982C 5 Inch 80 Grit Fibre Disc

Product Description

The 3M 7100110344 is the Cubitron II Fibre Disc 982C, a coated abrasive 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 the life of the disc. At 5 inches in diameter and 80 grit, this disc delivers fast stock removal with less grinding pressure compared to conventional fibre discs. The result is reduced operator fatigue, longer disc life, and higher throughput per disc change. It is installed and used by metal fabricators, welders, and grinding technicians working in manual, robotic, and pressure-assisted grinding setups.

This disc is designed for weld grinding, beveling, and surface preparation on carbon steel workpieces. Its stiff fibre backing and strong resin bond are suited to heavyweight applications where disc deflection and tearing are concerns. The 80-grit specification targets aggressive material removal rather than finishing work. At a rated speed of 12000 RPM, this disc fits standard 5-inch right-angle grinders used in fabrication shops and field welding environments.

Key Features

• 3M Precision-Shaped Grain maintains sharp cutting points for fast stock removal with reduced grinding pressure
• Triangular ceramic grain wears evenly and runs cool, extending disc life up to two times longer than standard ceramic abrasives
• Stiff fibre backing and strong resin bond resist tearing under high-pressure grinding and beveling loads
• Rated to 12000 RPM for use with standard 5-inch right-angle grinders
• Compatible with manual, robotic, and pressure-assisted grinding applications
• Fewer disc changes reduce downtime and total abrasive cost per part

Compatibility

Designed as an OEM-style replacement or direct-use coated fibre disc for 5-inch right-angle grinders and disc grinders rated at or above 12000 RPM, used in carbon steel grinding and weld preparation applications.

Installation Notes

Licensed fabricators and grinding technicians should mount this disc only on a grinder with a compatible 5-inch backing pad rated for the disc speed. Always confirm the grinder is powered off and unplugged before mounting or removing the disc. Inspect the disc for cracks or damage before each use and never exceed the rated 12000 RPM. Follow applicable ANSI B11 and OSHA abrasive wheel safety guidelines during operation.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 80
• Maximum Speed: 12000 RPM
• Abrasive Type: Precision-Shaped Ceramic Grain
• Backing Type: Coated Fibre
• Application: Carbon Steel Grinding and Weld Beveling
• Weight: 0.08 pounds
• Package Dimensions: 21.59 x 8.7 x 8.95 inches
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100110344