3M 7100145431 Cubitron Ii Hookit Film Disc 775L 320 Grit

Product Description

The 3M 7100145431 is a Cubitron II Hookit Film Disc 775L designed for precision stock removal on a wide range of substrates. It uses 3M Precision Shaped Grain, a triangular ceramic mineral that slices through material rather than plowing or gouging the way conventional abrasives do. The result is a disc rated to cut up to 2 times faster and last up to 6 times longer than standard abrasive discs. At 3 inches in diameter and 320 grit, it is built for fine stock removal and surface finishing work in fabrication, automotive body, and metalworking applications. The film backing adds tear resistance and helps the disc hold its shape and edge through the cut.

This disc is suited for use in automotive refinishing, metal fabrication, and woodworking environments where controlled stock removal and consistent surface finish are required. The 320 grit rating makes it appropriate for finish passes and light material removal where surface quality matters. The hook-and-loop attachment system allows for rapid disc changes on compatible random orbital and orbital sanders, reducing downtime during production work. It is used by fabricators, body technicians, and finishing tradespeople working on metal, composites, and painted surfaces.

Key Features

• 3M Precision Shaped Grain technology cuts up to 2 times faster than conventional abrasive discs
• Ceramic mineral lasts up to 6 times longer than conventional abrasives
• Film backing provides greater tear resistance and improved edge retention
• Hook-and-loop attachment enables fast, tool-free disc changes
• Suited for stock removal across metal, composites, and painted substrates
• 320 grit for controlled finish-pass stock removal

Compatibility

Designed for use with hook-and-loop compatible random orbital and orbital sanders accepting 3-inch discs.

Installation Notes

Ensure the sanding pad backing is clean and free of debris before attaching the disc, as contamination can reduce hook-and-loop holding strength. Inspect the disc before each use and discard any disc showing tears, perforations, or delamination. Follow the tool manufacturer's recommended RPM rating and do not exceed it. Wear appropriate eye and respiratory protection when sanding metal or composite substrates.

Technical Specifications

• Disc Diameter: 3 inches
• Grit: 320
• Abrasive Type: Precision Shaped Ceramic Grain
• Backing Material: Film
• Attachment Type: Hook and Loop (Hookit)
• Unit of Measure: Each
• Weight: 1.4 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100145431