3M 7000045981 Quick-change Disc Roloc Tr 3 in Aluminum Oxide

Product Description

The 3M 7000045981 is a Roloc TR quick-change abrasive disc designed for surface preparation, blending, and finishing tasks on metal, composites, and similar substrates. Built with aluminum oxide abrasive on a non-woven construction, this disc delivers consistent cut and finish in a medium grade configuration. It operates at a maximum of 15,100 RPM and attaches via the Roloc TR twist-lock system for fast, tool-free disc changes. The non-woven structure conforms to irregular surfaces and resists loading, making it a reliable choice for weld cleanup, rust removal, and surface conditioning in fabrication and maintenance work.

This disc is suited for metal fabrication shops, maintenance and repair operations, and light industrial applications where controlled surface blending is required. The 3-inch diameter fits compact angle grinders and die grinders equipped with a Roloc TR mandrel. It performs well on ferrous and non-ferrous metals in both bench and field settings. Installers and technicians who need to prep surfaces before coating, welding, or inspection will find the medium grade and density 8 rating appropriate for intermediate stock removal without aggressive scarring.

Key Features

• Roloc TR twist-lock attachment for rapid disc changes without tools
• Aluminum oxide abrasive provides consistent cut on metal and composites
• Medium grade, density 8 construction balances cut rate and surface finish
• Non-woven design conforms to contours and resists loading on soft metals
• Rated to 15,100 RPM for use with standard pneumatic and electric grinders
• 3-inch disc diameter fits compact die grinders and right-angle grinders

Compatibility

Designed for use with Roloc TR mandrels and compatible quick-change grinder attachments that accept the TR-style twist-lock interface. Verify mandrel type before mounting, as Roloc and Roloc TR mandrels are not interchangeable.

Installation Notes

Mounting and removal should be performed with the grinder powered off and air supply disconnected. Align the disc hub with the Roloc TR mandrel, press firmly, and twist to lock before use. Always verify that the tool RPM rating meets or does not exceed the disc maximum of 15,100 RPM before operating. Wear appropriate eye protection and follow applicable ANSI B11 and shop safety standards when performing abrasive operations.