3M 7100078158 Hookit Sanding Disc 6 Inch P240 Grit

Product Description

The 3M 7100078158 is a coated abrasive sanding disc built for professional surface preparation work where dust control and consistent cut matter. Designed around a proprietary multi-hole pattern, this 6-inch disc evacuates sanding dust more efficiently than standard 5- or 6-hole configurations, extending disc life and maintaining cut rate throughout use. The open-coat, load-resistant construction resists clogging, keeping the abrasive surface cutting cleanly across the disc's usable life. Aluminum oxide grain provides faster stock removal and greater durability compared to traditional garnet abrasives, making this disc a reliable choice for finish sanding and surface prep tasks.

This disc is suited for sanding wood, painted surfaces, and composites in residential construction, finish carpentry, cabinet shops, and light industrial environments. At P240 grit, it is used for final material removal and surface smoothing prior to finishing or topcoat application. The Hookit attachment system allows quick disc changes without tools, reducing downtime during high-volume sanding operations. It is compatible with Hookit-style random orbital and orbital sanders commonly used by woodworkers, painters, and finishing contractors.

Key Features

• Proprietary multi-hole pattern provides superior dust extraction versus standard 5- or 6-hole discs, extending disc life
• Open-coat, load-resistant surface prevents clogging and maintains consistent cut rate
• Hookit hook-and-loop attachment system enables fast, tool-free disc changes and allows disc reuse
• Aluminum oxide abrasive grain cuts faster and outlasts traditional garnet grain
• C-weight paper backing delivers firm support for aggressive sanding applications

Compatibility

Designed for use with Hookit-style hook-and-loop random orbital and orbital sanders accepting 6-inch discs.

Installation Notes

Installation is performed by finish carpenters, painters, and surface prep technicians. Before mounting, confirm the sander's backup pad is clean and free of debris to ensure proper hook-and-loop adhesion. Attach the disc by pressing it firmly and evenly onto the pad. Inspect the disc for wear or loading before each use and replace when cut rate drops noticeably.

Technical Specifications

• Disc Diameter: 6 inches
• Grit: P240
• Abrasive Type: Aluminum Oxide
• Coat Type: Open Coat
• Backing Weight: C-Weight Paper
• Attachment Type: Hookit Hook-and-Loop
• Unit Weight: 0.02 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100078158