3M 7100078159 Sanding Disc 6 Inch P320 Grit Clean Sanding

Product Description

The 3M 7100078159 is a coated abrasive hook-and-loop sanding disc designed for clean sanding applications in finishing and surface preparation work. Built on a C-weight paper backing, this 6-inch disc uses aluminum oxide grain and features 3M's proprietary multi-hole pattern for superior dust extraction compared to standard 5- or 6-hole configurations. Rated at P320 grit, it delivers fine material removal with an open coat, load-resistant construction that resists clogging and extends disc life. Woodworkers, automotive refinishers, and finishing contractors rely on this disc for consistent cut rate and reduced downtime between disc changes.

This disc is suited for orbital and random-orbit sanders in residential and light commercial finishing environments. Typical applications include wood sanding, primer sanding, filler leveling, and prep work before topcoat application. The hook-and-loop attachment system allows fast disc swaps without tools, making it practical for high-volume sanding operations where multiple grits are cycled through a single session.

Key Features

• Proprietary multi-hole pattern provides dust extraction superior to standard 5- or 6-hole disc designs
• Open coat, load-resistant surface resists clogging to maintain cut rate and extend disc life
• Aluminum oxide abrasive grain cuts faster and lasts longer than garnet alternatives
• C-weight paper backing supports consistent pressure during aggressive sanding passes
• Hook-and-loop attachment allows tool-free disc changes and disc reuse
• No hole alignment required during installation

Compatibility

Designed for use with 6-inch hook-and-loop random-orbit and orbital sanders accepting standard multi-hole disc patterns.

Installation Notes

Power down and unplug the sander before changing discs. Press the disc firmly onto the hook-and-loop pad to ensure full contact across the backing before starting the tool. Inspect the pad surface for worn hooks that reduce disc retention before each session. Follow applicable workplace safety and dust control guidelines when performing sanding operations.

Technical Specifications

• Disc Diameter: 6 inches
• Grit: P320
• Abrasive Material: Aluminum Oxide
• Backing Weight: C-weight paper
• Coating Type: Open coat, load-resistant
• Attachment Type: Hook and loop
• Unit Weight: 0.02 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100078159