3M 7100020064 Psa Disc Holder 3/4 in 1/4 in Shank

Product Description

The 3M 7100020064 is a PSA (pressure-sensitive adhesive) disc holder designed to support abrasive discs during grinding in confined or hard-to-reach areas. The holder features a face diameter smaller than the disc it mounts, which simplifies disc centering and makes removal faster between jobs. The 1/4 inch shank fits standard die grinders and rotary tools commonly used in fabrication, metalworking, and finishing applications. At 0.03 pounds, the holder adds minimal weight to the tool setup and is sold as a single unit.

This disc holder is suited for trade and industrial applications where abrasive work is required in tight spaces, such as weld seam cleanup, surface prep in recessed areas, or detail grinding on fabricated assemblies. It is compatible with PSA-backed abrasive discs and is used by metal fabricators, maintenance technicians, and production grinding operators working with standard 1/4 inch shank rotary or die grinder tooling.

Key Features

• Face diameter smaller than disc size for easier centering and disc removal
• 1/4 inch shank fits standard die grinders and rotary tools
• Supports PSA-backed abrasive discs during grinding operations
• Designed for access in hard-to-reach or confined grinding areas
• Lightweight at 0.03 pounds for minimal tool balance impact

Compatibility

Designed for use with PSA-backed abrasive discs mounted to 1/4 inch center hole shank grinding tools.

Installation Notes

Installation is performed by securing the 1/4 inch shank into the collet of a die grinder or compatible rotary tool per the tool manufacturer's instructions. Ensure the tool is powered off and depressurized before attaching or changing the disc holder. Apply the PSA disc firmly to the holder face before operating to confirm full adhesion. Follow applicable shop safety protocols and wear appropriate PPE during all grinding operations.

Technical Specifications

• Shank Size: 1/4 inch
• Face Diameter: 3/4 inch
• Weight: 0.03 pounds
• Sold As: Each
• UPC: 00051144450732

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100020064