3M 7010328310 Quick-change Disc 3 in 120 Grit Diamond Roloc Tr

Product Description

The 3M 7010328310 is a diamond abrasive quick-change disc designed for surface preparation, grinding, and finishing tasks in trade and industrial environments. It mounts via the Roloc TR (Type III) attaching system, allowing fast one-handed disc changes without tools. The disc measures 3 inches in diameter, carries a 120 grit rating at Grade M125, and uses a flexible polyester J-weight backing that conforms to contoured surfaces. Rated to 20,000 RPM, it is suited for high-speed angle grinder and die grinder applications. The coated diamond abrasive construction delivers consistent cut rate on hard or abrasive materials. Typical users include machinists, fabricators, and maintenance technicians working on metal, carbide, ceramic, or composite substrates.

This disc fits residential maintenance, commercial fabrication, and industrial maintenance-of-way applications where a fast-attach abrasive disc is required. The Roloc TR interface is compatible with 3M TR and TS backup pads, making it a drop-in fit for existing Roloc tool setups already in the field. The 3-inch diameter suits tight-clearance grinding and blending work on weld joints, edges, and surface spots that larger discs cannot reach. The flexible polyester backing allows the disc to follow curved or irregular workpiece geometry without gouging.

Key Features

• Roloc TR (Type III) quick-change attachment for tool-free one-handed disc swaps
• 120 grit diamond abrasive at Grade M125 for consistent material removal on hard substrates
• 3-inch diameter with flexible J-weight polyester backing for contour conformance
• Rated to 20,000 RPM for use with high-speed angle and die grinders
• Coated abrasive construction reduces loading on hard or dense materials
• Part of the 3M 6234J series

Compatibility

Designed for use with Roloc TR and TS backup pad systems. The TR (Type III) attaching system is compatible with standard 3M Roloc TR-style mandrels and backup pads rated for 3-inch discs.

Installation Notes

Installation requires a Roloc TR-compatible backup pad and mandrel mounted in an angle grinder or die grinder. Ensure the grinder's rated speed meets or exceeds the disc RPM rating before mounting. Inspect the disc for damage before each use and never exceed the 20,000 RPM maximum speed rating. Eye protection and appropriate PPE are required during operation per standard abrasive safety practices.