3M 7100009221 Mini Mandrel 935 2-7/8x1/4 in 5 Per Case

Product Description

The 3M 7100009221 is a Mini Mandrel designed to hold 1-inch wide by 1-1/2-inch long sheets of Scotch-Brite abrasive material for surface conditioning and finishing work in confined or hard-to-reach areas. Model 935, this mandrel measures 2-7/8 inches in length with a 1/4-inch shank diameter, making it compatible with standard die grinders and rotary tools commonly used in fabrication, maintenance, and metalworking applications. Each case contains 5 mandrels. Licensed tradespeople and skilled tradespeople working in aerospace, industrial, or mechanical service environments rely on this tool to access tight clearances where larger abrasive attachments cannot reach.

This mandrel is suited for use in residential and commercial maintenance, HVAC service, metal fabrication, and general mechanical repair settings. It is particularly useful when technicians need to blend, deburr, or condition surfaces inside tubing, around weld joints, or within enclosures where conventional abrasive tools are too large to operate effectively. The 2-7/8-inch by 1/4-inch format fits into standard rotary tool chucks without modification.

Key Features

• Accepts 1-inch wide by 1-1/2-inch long Scotch-Brite abrasive sheets for tight-area access
• 1/4-inch shank diameter fits standard die grinder and rotary tool chucks
• Overall length of 2-7/8 inches provides reach into confined spaces
• Sold as a case of 5 mandrels for shop or field inventory
• Model 935 designation for straightforward reorder and replacement

Compatibility

Designed for use with 1-inch wide by 1-1/2-inch long Scotch-Brite abrasive material sheets. Intended for use with standard 1/4-inch chuck die grinders and rotary tools.

Installation Notes

Installation is performed by trade professionals or skilled technicians using a standard 1/4-inch chuck die grinder or rotary tool. Ensure the tool is powered off and fully stopped before attaching or removing the mandrel. Secure the shank firmly in the collet chuck before operating the tool. Follow applicable workplace safety standards and tool manufacturer guidelines when selecting operating speed for the attached abrasive.

Technical Specifications

• Model: 935
• Size: 2-7/8 inches x 1/4 inches
• Compatible Abrasive Sheet Size: 1 inch wide x 1-1/2 inches long
• Package Quantity: 5 per case
• Weight: 0.36 pounds
• UPC: 00048011040202

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100009221