3M 7010290614 Cubitron Ii 987C Fiber Disc 80 Grit 7 in

Product Description

The 3M 7010290614 is the Cubitron II 987C coated fiber disc, a 7-inch abrasive disc engineered for medium to heavy-duty material removal. It uses 3M Precision-Shaped Grain, a ceramic abrasive geometry that maintains sharp cutting points longer than conventional abrasive minerals, delivering a faster cut rate at lower grinding pressure. A stiff fiber backing paired with a strong resin bond keeps the disc stable and tear-resistant under aggressive operating conditions such as weld grinding and beveling. Rated at 8600 rpm, this disc is built for use with angle grinders in demanding fabrication and metalworking environments. A built-in grinding aid helps manage heat generation, making it suitable for heat-sensitive alloys.

The 987C fiber disc is used in fabrication shops, weld prep and finishing operations, and robotic or pressure-assisted grinding systems. Its combination of high cut rate and extended disc life reduces the frequency of disc changes, lowering downtime on production lines. Typical applications include heavy weld grinding, edge beveling, and surface conditioning on steel and alloy workpieces in both manual and automated settings. Each disc is sold individually with a minimum order quantity of 100 units.

Key Features

• Precision-Shaped Grain maintains sharp cutting edges longer than conventional abrasives, reducing grinding pressure required
• Higher cut rate and extended disc life mean more parts completed per disc and fewer changeouts
• Stiff fiber backing and strong resin bond provide tear resistance for high-pressure applications
• Built-in grinding aid reduces heat buildup, protecting heat-sensitive alloy workpieces
• Compatible with robotic and pressure-assisted grinding applications, reducing machine downtime
• 80 grit designation suited for aggressive stock removal and weld grinding operations

Compatibility

Designed for use on angle grinders and disc grinders accepting 7-inch fiber discs with a maximum operating speed of 8600 rpm or higher.

Installation Notes

Installation and disc changes should be performed by qualified grinding equipment operators or metalworking technicians. Confirm the grinder's rated no-load rpm meets or exceeds the disc's 8600 rpm maximum before mounting. Inspect the disc for damage before each use and never operate a cracked or torn disc. Follow applicable ANSI B11 and OSHA grinding safety standards, including the use of appropriate face and eye protection.

Technical Specifications

• Diameter: 7 inches
• Grit: 80
• Maximum Speed: 8600 rpm
• Disc Type: Coated Fiber Disc
• Abrasive Mineral: Precision-Shaped Grain ceramic
• Backing: Stiff fiber
• Weight: 0.08 pounds
• Package Length: 21.59 inches
• Package Width: 8.7 inches
• Package Height: 8.95 inches
• Sold As: Each
• UPC: 00051141276663

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7010290614