3M 7100145405 Hook and Loop Film Disc 320 Grit 5 Inch

Product Description

The 3M 7100145405 is a coated abrasive hook-and-loop film disc engineered for aggressive stock removal on a wide range of substrates. It uses 3M Precision Shaped Ceramic Grain, a triangular mineral that slices through material rather than plowing or gouging like conventional abrasive grains. The result is a disc rated to cut up to 2x faster and last up to 6x longer than standard abrasive discs. At 5 inches in diameter and 320 grit, it is suited to finishing and light stock-removal passes where surface consistency matters. Trades working metal fabrication, body work, composites, and painted surfaces will find this disc a direct fit for angle grinders and random orbital sanders with hook-and-loop pads.

This disc is designed for use in metal fabrication shops, automotive body repair, woodworking finishing operations, and general surface preparation work. The 320-grit rating positions it for intermediate-to-fine finishing, paint prep, and blending passes. The hook-and-loop backing system allows rapid disc swaps without tools, reducing downtime during production or service work. Its film backing provides greater tear resistance and edge retention compared to paper-backed alternatives, making it durable through extended use on contoured or irregular surfaces.

Key Features

• Precision Shaped Ceramic Grain technology cuts up to 2x faster than conventional abrasive discs
• Grain geometry slices substrate rather than gouging, extending disc life up to 6x over conventional abrasives
• Film backing delivers superior tear resistance and edge retention versus paper backing
• Hook-and-loop attachment enables fast, tool-free disc changes
• 320 grit suitable for intermediate finishing, paint prep, and surface blending
• Compatible with standard 5-inch hook-and-loop backing pads on angle grinders and random orbital sanders

Compatibility

Designed for use with 5-inch hook-and-loop backing pads on angle grinders and random orbital sanders across a wide variety of substrate types including metals, composites, and painted surfaces.

Installation Notes

Ensure the sander or grinder is powered off and disconnected from any power source before attaching or removing the disc. Press the disc firmly onto the hook-and-loop pad to ensure full engagement before operation. Inspect the backing pad for worn hooks that may cause the disc to detach during use. Follow applicable shop safety standards including eye and respiratory protection when grinding or sanding metal and painted surfaces.

Technical Specifications

• Diameter: 5 inches
• Grit: 320
• Attachment Type: Hook and Loop
• Backing Material: Film
• Abrasive Grain: Precision Shaped Ceramic
• Package Weight: 3.1 pounds
• Package Length: 13.6 inches
• Package Width: 6 inches
• Package Height: 6.2 inches
• Unit of Measure: Each
• UPC: 076308470802

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100145405