3M 7000045978 Scotch-brite Roloc Unitized Wheel 3 Inch Fine

Product Description

The 3M 7000045978 is a Scotch-Brite Roloc EXL Unitized Wheel designed for edge deburring and surface finishing on metal workpieces. Built with a compressed, open-web abrasive construction and aluminum oxide (AO) grain at a Fine grit rating, this wheel delivers consistent cutting action throughout its service life. The unitized design holds its shape under load, making it well-suited for applications where dimensional tolerances matter. It attaches via the 3M Roloc quick-change system, allowing fast disc swaps during multi-step finishing workflows. Metalworking shops, fabricators, and machinists are the primary users of this wheel.

This wheel is used in metalworking applications including edge deburring, light stock removal, and surface conditioning on machined parts, fabricated components, and assemblies. The hard-density construction supports consistent edge retention, while the open-web abrasive structure resists loading on ferrous and non-ferrous metals. It is well-suited for production environments where repeatable finishes on close-tolerance parts are required. The 3-inch diameter fits standard Roloc-compatible right-angle grinders and die grinders used in fabrication and machine shop settings.

Key Features

• Unitized construction maintains consistent shape and cutting action throughout wheel life
• Aluminum oxide abrasive at Fine grit for controlled edge deburring and finishing
• Compressed, open-web design resists loading and provides uniform grain distribution
• Hard density supports edge retention for repeatable cutting geometry
• 3M Roloc quick-change attachment system for fast disc change-out in multi-step processes
• 3-inch diameter fits standard Roloc-compatible grinders and die grinders

Compatibility

Designed for use with 3M Roloc-compatible right-angle grinders and die grinders that accept the Roloc quick-change attachment system. No specific model compatibility data was provided in the product input.

Installation Notes

Installation and disc changes should be performed with the grinder powered off and disconnected from the power source. Thread the Roloc stem firmly into the tool mandrel by hand until it seats securely before operating. Verify the tool spindle speed rating meets or exceeds the maximum RPM marked on the wheel before use. Wear appropriate PPE including eye protection and gloves when mounting or operating abrasive wheels.

Technical Specifications

• Diameter: 3 inches
• Abrasive Type: Aluminum Oxide (AO)
• Grit: Fine
• Construction: Unitized, compressed open-web
• Attachment System: Roloc quick-change
• Unit of Measure: Each
• Weight: 0.07 pounds

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000045978