3M 7000120891 Disc Pad Holder Model 918 5/8-11 Thread

Product Description

The 3M 7000120891 is a disc pad holder designed to back and support abrasive discs during grinding and finishing operations. Model 918 provides a rigid mounting platform that keeps the abrasive disc flat and properly seated against the workpiece. The holder measures 8 inches in diameter with a 5/16-inch face thickness and a 3/8-inch body depth. It uses a 5/8-11 internal thread for attachment to angle grinders and disc grinders with a compatible spindle. Sold individually, this holder is a direct consumable component in metalworking, fabrication, and surface preparation workflows.

This disc pad holder is used in industrial and trade settings where consistent disc backing is required. Typical applications include weld blending, surface conditioning, and stock removal on metal substrates. It is suited for use in fabrication shops, maintenance facilities, and construction environments where angle grinders are standard tools. The 5/8-11 internal thread is a common spindle standard found on most large-format angle grinders, making this holder widely compatible across tool brands in professional settings.

Key Features

• 8-inch diameter backing surface for large-format abrasive discs
• 5/8-11 internal thread fits standard angle grinder spindles
• Model 918 construction provides rigid disc support during grinding and finishing
• Compact 3/8-inch body depth reduces tool-to-work clearance requirements
• Sold as single unit for precise inventory and replacement management

Compatibility

Designed for use with 8-inch abrasive discs on angle grinders and disc grinders equipped with a 5/8-11 threaded spindle.

Installation Notes

A licensed or qualified technician should ensure the grinder is fully powered down and disconnected from the power source before mounting or removing the disc pad holder. Thread the holder onto the grinder spindle by hand first, then secure according to the tool manufacturer's torque guidance. Inspect the holder for cracks or deformation before each use, and replace immediately if damage is found. Follow applicable ANSI B11 and OSHA 29 CFR 1910.215 abrasive wheel safety standards during installation and operation.

Technical Specifications

• Model: 918
• Diameter: 8 inches
• Face Thickness: 5/16 inches
• Body Depth: 3/8 inches
• Thread Size: 5/8-11 Internal
• Weight: 0.54 pounds
• UPC: 50048011094514
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000120891