3M 7100082547 Wheel Mandrel 1/4 Inch Hole 3 Inch Length

Product Description

The 3M 7100082547 is a wheel mandrel designed to mount abrasive wheels to rotary tools and die grinders used in metalworking, fabrication, and surface preparation applications. The mandrel features a 0.12-inch shank diameter for secure chuck or collet engagement and a 4.3-inch head and washer diameter that provides broad, stable support across the wheel face. Overall length is 3 inches. The 1/4-inch hole size accommodates standard-bore abrasive wheels. This type of accessory is typically installed by machinists, fabricators, and maintenance technicians performing grinding, deburring, or finishing work.

This wheel mandrel supports abrasive wheels ranging from 2 inches to 3 inches in diameter and accepts wheel widths from 1/4 inch up to 1 inch. It is suited for bench-top and portable rotary tool setups in light industrial, maintenance, and trade shop environments. The mandrel is sold individually and is compatible with wheels bored to 1/4 inch, making it a straightforward accessory for standard abrasive wheel configurations used across HVAC, plumbing, and general fabrication trades.

Key Features

• 0.12-inch shank diameter fits standard collets and chucks on die grinders and rotary tools
• Accepts abrasive wheels with 1/4-inch center bore holes
• Supports wheel diameters from 2 inches to 3 inches
• Accepts wheel widths from 1/4 inch to 1 inch
• 4.3-inch head and washer diameter provides broad wheel-face support
• 3-inch overall length suits standard rotary and die grinder setups

Compatibility

Designed for use with abrasive wheels bored to 1/4 inch, with diameters between 2 inches and 3 inches and widths between 1/4 inch and 1 inch. No specific tool or wheel models are named in the product data.

Installation Notes

Power down and disconnect the rotary tool or die grinder from its power source before mounting or removing the wheel mandrel. Ensure the shank is fully seated and secured in the tool collet or chuck before use. Verify that the abrasive wheel is rated for the operating RPM of the tool before running. Follow applicable ANSI and tool-manufacturer safety guidelines for abrasive wheel mounting and operation.