3M 7100045071 Hook Loop Disc 120 Grit 5 Inch Ceramic

Product Description

The 3M 7100045071 is a 5-inch ceramic abrasive disc designed for hook-and-loop backup pad systems. Part of the 3M 775L Series, this disc uses a coated ceramic abrasive construction to deliver consistent stock removal on metal, composites, and painted surfaces. At 120 grit, it falls in the fine grade range, making it well-suited for finishing passes, surface prep before coating, and light material removal. The hook-and-loop attachment allows for quick disc changes during production work, reducing downtime between grits or when swapping discs across multiple workpieces.

This disc is used in fabrication shops, automotive body work, and general metalworking applications where a 5-inch random orbital or disc sander is the primary tool. The 120-grit ceramic construction holds up well on harder substrates and maintains cut rate longer than aluminum oxide alternatives at the same grit. It is appropriate for both bench and handheld tool applications where a hook-and-loop backer plate is present.

Key Features

• 5-inch diameter fits standard hook-and-loop backup pads
• 120 grit fine grade for finishing and pre-coat surface preparation
• Ceramic abrasive material for extended cut life on metal and hard substrates
• Coated abrasive construction provides consistent, uniform scratch pattern
• Part of the 775L Series for reliable performance in production environments

Compatibility

Designed for use with 5-inch hook-and-loop backup pads on random orbital sanders, disc sanders, and right-angle grinders equipped with a hook-and-loop attachment system.

Installation Notes

Attach the disc by pressing the loop backing firmly onto the hook-face backup pad before powering the tool. Inspect the backup pad for worn hooks before mounting, as a degraded pad reduces disc retention and can cause the disc to separate during use. Follow tool manufacturer guidelines for maximum RPM ratings and ensure the disc RPM rating meets or exceeds the tool speed. Allow the disc to come to a full stop before removing or replacing.