3M 7100178271 Cubitron Ii 987C Fiber Disc 36 Grit 9.125 in

Product Description

The 3M 7100178271 is a Cubitron II 987C coated fiber disc engineered for medium to heavy-duty material removal applications. It uses 3M Precision-Shaped Grain, a triangular ceramic abrasive that maintains sharp cutting points throughout the disc life, delivering a high cut rate with reduced grinding pressure. A stiff fiber backing and strong resin bond resist tearing under demanding load conditions such as weld grinding and beveling. A built-in grinding aid helps manage heat at the workpiece surface, making this disc suitable for heat-sensitive alloys. Licensed HVAC, fabrication, and industrial maintenance technicians working with metal stock, welds, and structural components rely on this disc for consistent, high-throughput results.

This disc is designed for angle grinders and pressure-assisted or robotic grinding equipment. At 9.125 inches in diameter with a 36-grit abrasive and a maximum operating speed of 6,600 RPM, it handles aggressive stock removal on steel, stainless steel, and similar ferrous metals. It is suited to production environments where disc longevity and reduced changeover time directly affect throughput. Each disc is sold individually, with a minimum order quantity of 100 units, making this SKU appropriate for shop or facility procurement.

Key Features

• 3M Precision-Shaped Grain maintains sharp cutting points for fast material removal with less applied pressure
• Stiff fiber backing and strong resin bond provide tear resistance in high-pressure weld grinding and beveling
• Integrated grinding aid reduces surface temperatures, protecting heat-sensitive alloys from thermal damage
• Extended disc life and higher cut rate reduce changeover frequency in robotic and pressure-assisted setups
• 36-grit coated abrasive suited for aggressive stock removal on ferrous metals
• Rated to 6,600 RPM for compatibility with standard heavy-duty angle grinders

Compatibility

Designed for use on angle grinders and robotic or pressure-assisted grinding equipment that accept 9.125-inch fiber discs rated to 6,600 RPM or higher. Verify machine speed rating before mounting.

Installation Notes

Mounting and removal of fiber discs should be performed by qualified personnel with the grinder fully powered off and the power source locked out. Always confirm the tool speed rating meets or exceeds the disc maximum of 6,600 RPM before operation. Inspect the disc for cracks or damage before each use and never operate a damaged disc. Follow applicable ANSI B11 and OSHA 1910.215 abrasive wheel standards for guarding and safe use.

Technical Specifications

• Disc Diameter: 9.125 inches
• Grit: 36
• Maximum Operating Speed: 6,600 RPM
• Abrasive Type: 3M Precision-Shaped Grain (Ceramic)
• Backing Type: Stiff Fiber
• Disc Construction: Coated
• Package Dimensions: 12.71 inches L x 10.7 inches W x 10.95 inches H
• Package Weight: 21.852 pounds
• UPC: 638060297839
• Unit of Measure: Each
• Minimum Order Quantity: 100

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100178271