3M 7100042434 Hookit D/f Low Profile Backup Pad

Product Description

The 3M 7100042434 is a low-profile backup pad designed for use with 5-inch diameter Hookit D/F abrasive discs. It features a one-piece threaded shank that reduces vibration and improves rotational balance during operation. The red foam construction provides reliable edge durability, making this pad well suited for coarse-grade sanding tasks and applications that require consistent surface leveling. It attaches to random orbital sanders equipped with a 5/16-24 internal thread. Body technicians, painters, and finishing tradespeople use this pad when precision surface preparation demands a stable, low-profile platform.

This backup pad is primarily used in automotive refinishing, collision repair, and industrial finishing environments. It is appropriate for flat and near-flat panels where even material removal and good leveling performance are priorities. The low-profile design allows closer access to work surfaces compared to standard-height pads, which helps maintain control during aggressive coarse-grade passes. It is sold as a single unit.

Key Features

• Compatible with 5-inch Hookit D/F abrasive discs
• Red foam construction for enhanced edge durability
• One-piece threaded shank minimizes vibration and improves balance
• Low-profile design for closer surface contact and better leveling
• Fits random orbital sanders with 5/16-24 internal thread
• Well suited for coarse-grade material removal applications

Compatibility

Designed for use with 5-inch Hookit D/F discs on random orbital sanders featuring a 5/16-24 internal thread attachment.

Installation Notes

Installation is performed by threading the pad shank directly into the sander spindle by hand until snug. Confirm the sander is powered off and unplugged before attaching or removing the pad. Do not overtighten, as this can damage the threaded shank or sander spindle. Inspect the foam surface for wear or deformation before each use and replace the pad if the foam shows signs of deterioration.

Technical Specifications

• Pad Diameter: 5 inches
• Thickness: 3/8 inches
• Thread Size: 5/16-24 external
• Foam Color: Red
• Weight: 0.3 pounds
• UPC: 00051131058552

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100042434