3M 7100068024 Cubitron Ii 987C Fiber Disc 60 Grit 4.5 in

Product Description

The 3M 7100068024 is the Cubitron II 987C coated fiber disc, a high-performance abrasive disc engineered for medium to heavy-duty grinding and material removal. Built around 3M Precision-Shaped Grain, this disc maintains consistently sharp cutting points that deliver a high cut rate with less applied pressure than conventional abrasive discs. The 60-grit ceramic abrasive is bonded to a stiff fiber backing designed to withstand aggressive applications such as weld grinding and beveling. At 4.5 inches in diameter, it is a standard size for right-angle grinders used across fabrication, structural steel, and metalworking trades.

This disc is suited for medium to heavy fabrication environments where throughput and disc longevity matter. Typical applications include weld seam removal, edge beveling, and surface conditioning on steel and heat-sensitive alloys. The integrated grinding aid on the disc face reduces heat buildup during aggressive cuts, making it appropriate for stainless steel and other alloys where heat-induced discoloration or metallurgical changes are concerns. It is also well-suited for robotic and pressure-assisted grinding setups where consistent disc performance reduces changeover frequency and downtime.

Key Features

• 3M Precision-Shaped Grain holds sharp cutting geometry longer than conventional abrasive grains, cutting faster with less pressure
• Ceramic mineral runs cooler than aluminum oxide, extending disc life and reducing the number of disc changes per shift
• Integrated grinding aid minimizes heat generation, protecting heat-sensitive alloys during grinding
• Stiff fiber backing with strong resin bond provides tear resistance for high-pressure weld grinding and beveling
• Reduced changeover frequency makes this disc well-suited for robotic and pressure-assisted grinding applications

Compatibility

Designed for use with standard right-angle grinders accepting 4.5-inch fiber discs with an appropriate arbor backing pad.

Installation Notes

Installation of fiber discs should be performed by a qualified operator familiar with angle grinder safety protocols. Always power down and disconnect the grinder before mounting or removing a disc. Inspect the backing pad and disc for damage before each use, and confirm the grinder RPM rating meets or exceeds the disc rating. Eye protection, face shield, and appropriate PPE are required during operation per ANSI B11 and relevant shop safety standards.

Technical Specifications

• Disc Diameter: 4.5 inches
• Grit: 60
• Abrasive Type: Precision-Shaped Ceramic Grain (Cubitron II)
• Backing Type: Stiff Fiber
• Construction: Coated
• Weight: 0.07 pounds
• UOM: Each
• UPC: 00051141276618

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100068024