3M 7100009224 Forked Spindle Holder 3x1/16x3/4x1/4 in

Product Description

The 3M 7100009224 is a forked spindle holder designed to accept coated abrasive strips for cleaning and polishing inner diameters, bores, and other tight or restricted areas. The forked slot grips abrasive strips securely, allowing the spindle to be driven by a rotary tool for consistent, repeatable surface finishing in confined geometries. Overall length is 3 inches, slot width is 1/16 inches, slot length is 3/4 inches, and shaft diameter is 1/4 inches. Sold individually, this holder is a practical accessory for trades and shops that require controlled abrasive work in hard-to-reach locations.

This spindle holder is suited for use in metal fabrication, maintenance, and mechanical service applications where inner-diameter finishing, deburring, or surface preparation is required. It is particularly useful when working inside tubing, pipe ends, bearing bores, or housings where standard abrasive tooling cannot reach. The 1/4-inch shaft diameter is compatible with common rotary tool chucks and die grinders.

Key Features

• Forked slot design securely holds coated abrasive strips during rotation
• Sized for inner-diameter cleaning and polishing in tight or restricted areas
• 1/4-inch shaft diameter fits standard rotary tool and die grinder chucks
• Compact 3-inch overall length for access in confined workspaces
• Slot width of 1/16 inches and slot length of 3/4 inches accommodate standard abrasive strip widths
• Lightweight at 0.27 pounds for easy handling and extended use

Compatibility

Designed for use with coated abrasive strips in rotary tools and die grinders fitted with a 1/4-inch chuck. Specific compatible abrasive strip models or system families were not identified in the available product data.

Installation Notes

Thread or insert the appropriate coated abrasive strip into the forked slot before mounting the spindle in the tool chuck. Ensure the rotary tool or die grinder is powered off and unplugged before loading or changing abrasive strips. Inspect the spindle and abrasive strip for damage before each use, and do not exceed the maximum RPM rating of the abrasive strip being used.

Technical Specifications

• Overall Length: 3 inches
• Slot Width: 1/16 inches
• Slot Length: 3/4 inches
• Shaft Diameter: 1/4 inches
• Weight: 0.27 pounds
• Sold As: Each
• UPC: 00051144451210

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100009224