3M 7100057727 Hookit Disc Pad 5in 5/8-11 Internal

Product Description

The 3M 7100057727 is a Hookit disc pad designed to back and support 5-inch diameter Hookit abrasive discs during sanding and surface preparation work. Constructed from medium-density foam, the pad absorbs vibration and conforms slightly to work surfaces for consistent disc contact. The 30-degree tapered edge reduces edge loading and minimizes swirl marks near panel boundaries. The 5/8-11 internal thread mount attaches directly to standard rotary and random-orbital tools used in automotive body, woodworking, and light fabrication shops. This pad measures 5 inches in diameter and 0.5 inches in thickness. It is sold individually and is a standard replacement backing pad for professional finishing setups.

This disc pad is suited for body shops, cabinet shops, and general fabrication environments where 5-inch Hookit discs are already in use. It is a direct-fit backing component for pneumatic and electric random-orbital sanders equipped with a 5/8-11 threaded spindle. The tapered foam edge makes it appropriate for work near panel edges, contoured surfaces, and areas where full flat-pad contact is not practical. Licensed tradespeople and experienced finishing technicians are the typical installers and users of this component.

Key Features

• Medium-density foam construction absorbs vibration and provides consistent disc support
• 30-degree tapered edge reduces edge loading and minimizes surface marring
• 5/8-11 internal thread for secure attachment to standard sander spindles
• 5-inch diameter matches standard Hookit disc sizing
• 0.5-inch pad thickness for balanced flexibility and backing support

Compatibility

Designed for use with 5-inch diameter Hookit abrasive discs on rotary and random-orbital sanders equipped with a 5/8-11 threaded spindle.

Installation Notes

Installation is performed by threading the pad clockwise onto the sander spindle until firmly seated — no tools are required for attachment. Power down and disconnect the sander from its air supply or electrical source before swapping the backing pad. Inspect the foam face for tears, glazing, or deformation before each use, as a damaged pad can cause uneven disc wear and poor finish quality. Follow the tool manufacturer's RPM ratings and do not exceed the pad's rated operating speed.

Technical Specifications

• Diameter: 5 inches
• Thickness: 0.5 inches
• Thread Size: 5/8-11 Internal
• Foam Density: Medium
• Edge Profile: 30-degree taper
• Weight: 0.37 pounds
• UPC: 00051141286624

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100057727