3M 7100145470 Abrasive Film Disc 320 Grit 5 Inch

Product Description

The 3M 7100145470 is a coated abrasive film disc engineered for high-efficiency stock removal on a wide range of substrates. Built on the Cubitron II 775L platform, it uses 3M Precision Shaped Ceramic Grain — a triangular mineral structure that slices through material rather than plowing like conventional abrasive grains. At 320 grit and 5 inches in diameter, this disc delivers fast, consistent cut rates with significantly extended disc life compared to standard aluminum oxide or ceramic abrasives. The Stikit pressure-sensitive adhesive backing mounts and releases quickly on compatible backup pads, reducing changeover time during production finishing work.

This disc is suited for surface conditioning, blending, and fine stock removal on metals, composites, and painted surfaces in industrial, automotive body, and fabrication environments. The 320 grit rating makes it appropriate for intermediate-to-fine finishing passes where surface quality matters alongside cut rate. The film backing resists tearing at disc edges and conforms well to slightly contoured workpieces, making it a practical choice for production grinding and finishing operations where disc longevity directly affects labor costs.

Key Features

• 3M Precision Shaped Ceramic Grain slices substrate for faster, cleaner cuts
• Cuts up to 2 times faster than conventional abrasive discs
• Lasts up to 6 times longer than conventional abrasives, reducing disc changes
• Film backing provides greater tear resistance and improved edge retention
• Stikit PSA attachment system allows fast disc mounting and removal
• Suited for a wide variety of substrates with a primary focus on stock removal

Compatibility

Designed for use with 5-inch Stikit-compatible backup pads and random orbital or right-angle sanders that accept PSA-mount discs.

Installation Notes

Mounting is performed by pressing the PSA-backed disc firmly onto a clean, dry Stikit-compatible backup pad — ensure the pad surface is free of debris or adhesive residue before attachment. Power down the tool before mounting or removing any disc. Inspect the disc edge and backing for damage before each use and discard any disc showing tears, delamination, or glazing. Follow applicable shop safety protocols including eye and respiratory protection when grinding or finishing metal and composite materials.

Technical Specifications

• Disc Diameter: 5 inches
• Grit: 320
• Abrasive Type: Precision Shaped Ceramic Grain
• Backing Material: Film
• Attachment Type: Stikit Pressure-Sensitive Adhesive
• Unit of Measure: Each
• Minimum Order Quantity: 250
• Package Weight: 3.777 pounds
• Package Length: 11.3 inches
• Package Width: 5.9 inches
• Package Height: 6.3 inches
• UPC: 076308471069

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100145470