3M 7100214888 Cubitron Ii 775L Abrasive Disc 4 Inch 120 Grit

Product Description

The 3M 7100214888 is a coated abrasive film disc from the Cubitron II 775L series, engineered for aggressive stock removal on a wide range of substrates. It uses 3M Precision Shaped Grain technology, a triangular ceramic mineral that slices into material rather than plowing through it 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. At 4 inches in diameter and 120 grit, it is suited for medium-to-fine stock removal and surface preparation tasks performed by metal fabricators, auto body technicians, and general industrial trades.

The 775L disc is designed for use with Hookit-style or Stikiti attachment systems, making disc changes quick during production work. The film backing provides greater tear resistance and edge retention compared to paper-backed discs, extending usable life in demanding applications. Primary applications include weld blending, deburring, and surface conditioning on steel, aluminum, and other metals, as well as painted or composite substrates where controlled material removal is required.

Key Features

• 3M Precision Shaped Grain ceramic mineral slices substrate for faster, cooler cutting
• Cuts up to 2x faster than conventional abrasive discs
• Lasts up to 6x longer than conventional abrasives, reducing disc changes
• Film backing delivers superior tear resistance and edge retention over paper backing
• Stikiti pressure-sensitive attachment for rapid disc changes
• Suited for stock removal across metals, composites, and painted surfaces

Compatibility

Designed for use with Stikiti and compatible pressure-sensitive attachment backup pads on angle grinders and random orbital sanders accepting 4-inch discs.

Installation Notes

Installation and disc changes should be performed with the grinder or sander fully powered off and unplugged or disconnected from its power source. Ensure the backup pad is rated for the disc diameter and the tool RPM does not exceed the disc maximum RPM rating. Inspect the disc for damage before each use and discard any disc that shows tears, cuts, or delamination. Follow applicable shop safety protocols including eye protection and respiratory controls when grinding or sanding metal or composite materials.

Technical Specifications

• Disc Diameter: 4 inches
• Grit: 120
• Abrasive Type: Precision Shaped Ceramic Grain
• Backing Material: Film
• Attachment Type: Stikiti (pressure-sensitive)
• Construction: Coated
• Package Weight: 4.972 pounds
• Package Length: 16.25 inches
• Package Width: 5.88 inches
• Package Height: 6.25 inches
• UPC: 638060762269

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100214888