3M 7000046309 Unitized Wheel Mandrel Plastic

Product Description

The 3M 7000046309 is a plastic mandrel designed for use with unitized abrasive wheels in rotary tool applications. The mandrel self-taps directly into the center hole of the wheel, eliminating the need for separate hardware or adhesives. It accepts unitized wheels measuring 1 inch in diameter by 1 inch wide with a 3/16-inch center hole. Weighing just 0.06 pounds, this lightweight component is a consumable accessory installed by machinists, fabricators, metal finishers, and maintenance technicians performing surface conditioning, blending, or light deburring work.

This mandrel is suited for bench grinder attachments, die grinders, and rotary tools used in light metalworking, finishing, and surface prep applications. It is typically used in production or maintenance environments where unitized wheels are rotated through frequently and quick mandrel replacement is part of standard workflow. The self-tapping plastic construction allows fast wheel mounting without tools.

Key Features

• Self-tapping plastic body mounts directly into the unitized wheel center hole without additional hardware
• Accepts wheels 1 inch diameter x 1 inch wide with 3/16-inch center hole
• Lightweight construction at 0.06 pounds minimizes added rotational mass
• Sold individually per unit (UOM: Each)
• Minimum order quantity of 5 units per purchase

Compatibility

Designed for use with unitized abrasive wheels measuring 1 inch in diameter by 1 inch wide with a 3/16-inch center hole. Specific wheel compatibility should be verified against 3M unitized wheel product lines before ordering.

Installation Notes

This mandrel is installed by hand or with a rotary tool chuck by trade professionals and finishing technicians. Ensure the rotary tool or die grinder is powered off and unplugged before mounting or removing the mandrel and wheel assembly. Do not exceed the maximum RPM rating of the attached wheel. Inspect the mandrel for wear or damage before each use and replace if the plastic body shows cracking or stripping.

Technical Specifications

• Overall Dimensions: 2-1/16 inches x 1/4 inches x 3/4 inches
• Compatible Wheel Size: 1 inch diameter x 1 inch wide x 3/16-inch center hole
• Material: Plastic
• Weight: 0.06 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 00048011040189

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000046309