3M 7000120685 Unitized Wheel Mandrel 1.5x0.125x0.5 in

Product Description

The 3M 7000120685 is a unitized wheel mandrel designed to mount small-diameter unitized abrasive wheels to rotary tools, die grinders, and similar power equipment. The mandrel measures 1-1/2 inches in usable length with a 1/2 inch shank and accepts wheels with a 1/8 inch center hole. It supports wheels from 1 inch up to 1-1/2 inches in diameter with a maximum wheel width of 1/4 inch. Fabricators, metalworkers, and maintenance technicians use this mandrel when mounting unitized wheels for light deburring, blending, and surface finishing operations on metal and other materials.

This mandrel is suited for bench-top or handheld rotary tool applications in light industrial, fabrication, and maintenance environments. It is compatible with 3M unitized wheels in the 1 inch to 1-1/2 inch diameter range that have a 1/4 inch width and a 1/8 inch center hole. For unitized wheels rated at density 6 or harder, a 5/16 inch center hole wheel is recommended in place of the 1/8 inch center hole configuration. Sold individually.

Key Features

• Accepts unitized wheels from 1 inch to 1-1/2 inches in diameter
• Maximum compatible wheel width: 1/4 inch
• 1/8 inch center hole fitment for standard-density unitized wheels
• 5/16 inch center hole recommended for density 6 or harder wheels
• 1/2 inch shank for use with standard die grinder and rotary tool chucks

Compatibility

Designed for use with 3M unitized wheels 1 inch to 1-1/2 inches in diameter, 1/4 inch wide, with a 1/8 inch center hole. Not recommended for wheels wider than 1/4 inch or for wheels at density 6 or harder without switching to a 5/16 inch center hole wheel variant.

Installation Notes

Installation is typically performed by fabricators or maintenance technicians using a standard die grinder or rotary tool. Ensure the rotary tool is powered off and unplugged before mounting or removing the mandrel. Thread the mandrel securely into the tool chuck to the manufacturer-specified engagement depth before attaching the wheel. Do not exceed the maximum wheel width of 1/4 inch, as overhang can cause wheel failure during operation.

Technical Specifications

• Compatible Wheel Diameter: 1 inch to 1-1/2 inches
• Maximum Wheel Width: 1/4 inch
• Center Hole Size (Standard): 1/8 inch
• Recommended Center Hole (Density 6 or Harder): 5/16 inch
• Shank Size: 1/2 inch
• UPC: 00048011139661
• Sold As: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000120685