3M 7100145403 Cubitron Ii Hookit Film Disc 240 Grit

Product Description

The 3M 7100145403 is a 5-inch coated abrasive film disc designed for aggressive stock removal on a wide range of substrates. Built on the Cubitron II 775L platform, it uses 3M Precision Shaped Ceramic Grain technology, where triangular-profile ceramic mineral particles are engineered to slice through material cleanly rather than plowing or grinding like conventional abrasive grains. The result is a disc rated to cut up to two times faster and last up to six times longer than standard abrasive discs. The 240-grit designation targets fine stock removal and surface finishing stages. A film backing replaces paper, delivering greater tear resistance and better edge retention throughout the disc's service life.

This disc is suited for finish grinding, blending, and stock removal tasks across metal fabrication, automotive body work, woodworking, and composite panel preparation. The hook-and-loop attachment system allows fast disc swaps without tools, making it practical for high-volume production environments and field service work. It is designed for use with compatible 5-inch random orbital or disc sanders equipped with hook-and-loop backup pads.

Key Features

• 3M Precision Shaped Ceramic Grain cuts up to 2x faster than conventional abrasive grains
• Ceramic grain longevity rated up to 6x longer than conventional abrasives
• Film backing provides greater tear resistance and edge retention versus paper-backed discs
• Hook-and-loop attachment for tool-free disc changes and fast pad swaps
• 240 grit targets fine stock removal and pre-finish surface preparation
• Coated abrasive construction suited for a wide variety of substrates

Compatibility

Designed for use with 5-inch hook-and-loop backup pads on random orbital sanders and disc sanders configured for hook-and-loop disc attachment.

Installation Notes

Mounting and removal require no tools — align the disc face to the backup pad and press to engage the hook-and-loop interface. Ensure the backup pad is clean and free of debris before attaching a fresh disc, as contamination reduces holding strength. Always follow tool manufacturer RPM ratings and do not exceed the maximum operating speed marked on the disc or tool. Wear appropriate respiratory and eye protection when performing grinding or sanding operations.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 240
• Abrasive Type: Precision Shaped Ceramic Grain
• Backing Type: Film
• Attachment Type: Hook and Loop (Hookit)
• Construction: Coated
• Package Weight: 3 pounds
• Package Length: 11.3 inches
• Package Width: 5.9 inches
• Package Height: 6.3 inches
• UPC: 076308470956

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100145403