3M 7010326434 Cubitrona Ii 987C Fiber Disc 80 Grit 5 in

Product Description

The 3M 7010326434 is the Cubitrona II 987C coated fiber disc, a high-performance abrasive disc designed for medium to heavy-duty grinding, weld grinding, and beveling operations on metal. It uses 3M Precision-Shaped Grain, a ceramic abrasive mineral engineered to maintain sharp cutting points throughout the disc life. The result is a faster cut rate, lower grinding pressure, and extended disc life compared to conventional fiber discs. At 5 inches in diameter and 80 grit, it is suited to aggressive material removal while reducing heat buildup on heat-sensitive alloys. A stiff fiber backing and strong resin bond keep the disc stable under high-pressure load conditions.

This disc is built for professional fabrication and metalworking environments where productivity and disc longevity are critical. Typical applications include weld seam grinding, bevel preparation, and surface conditioning on steel and stainless steel. It is particularly effective in robotic grinding setups and pressure-assisted angle grinder applications where consistent cut performance and reduced changeout frequency are priorities. The integrated grinding aid helps manage heat during prolonged grinding passes on alloys prone to thermal distortion.

Key Features

• 3M Precision-Shaped Grain maintains sharp cutting points for fast stock removal with reduced grinding pressure
• Ceramic mineral runs cooler, extending disc life and reducing the number of disc changes per job
• Stiff fiber backing and strong resin bond provide tear resistance under high-pressure grinding loads
• Integrated grinding aid minimizes heat generation, protecting heat-sensitive alloys during extended use
• Rated to 12000 RPM, compatible with standard 5 inch angle grinders
• Reduces downtime in robotic and pressure-assisted grinding applications

Compatibility

Designed for use on 5 inch angle grinders rated to a minimum of 12000 RPM. Suitable for grinding and beveling applications on steel, stainless steel, and similar metal alloys in fabrication and manufacturing settings.

Installation Notes

This disc is installed and replaced by metalworking professionals, fabricators, or maintenance technicians using a standard 5 inch angle grinder with an appropriate backing pad. Always verify the grinder speed rating meets or exceeds the disc maximum RPM before mounting. Ensure the grinder is fully powered off and unplugged before changing discs. Inspect the disc for cracks or damage before each use and never operate a damaged disc.

Technical Specifications

• Diameter: 5 inches
• Grit: 80
• Maximum Speed: 12000 RPM
• Abrasive Type: Precision-Shaped Grain ceramic
• Backing: Stiff fiber
• Construction: Coated abrasive
• Weight: 0.08 pounds
• UPC: 00051141277325

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010326434