3M 7100010386 Disc Backing Pad Quick-change Type R

Product Description

The 3M 7100010386 is a quick-change disc backing pad designed to mount and secure abrasive discs during grinding, blending, and surface finishing operations. It uses a 1/4-20 female thread attachment and is rated to a maximum of 15,000 RPM, making it suitable for use with pneumatic and electric right-angle grinders and die grinders. The soft density construction allows the pad to conform to irregular or curved surfaces, improving disc contact and finish consistency. It is compatible with the Roloc TR quick-change system, enabling fast disc swaps without tools. This backing pad is a standard consumable accessory used by metalworkers, fabricators, and maintenance technicians across industrial and commercial worksites.

This backing pad is used in metal fabrication shops, HVAC sheet metal work, welding prep and cleanup, and general industrial maintenance applications. The quick-change Type R interface allows technicians to rotate through multiple disc grits rapidly during surface prep without stopping to change tooling. Soft density pads are particularly suited for contoured workpieces where full pad contact with the surface is required. It is sold individually and is intended for use with compatible quick-change abrasive discs in the Roloc TR format.

Key Features

• Quick-Change Type R interface for tool-free disc attachment and removal
• 1/4-20 female thread for standard grinder spindle compatibility
• 15,000 RPM maximum speed rating for use with high-speed pneumatic and electric tools
• Soft density construction conforms to curved and contoured surfaces
• Compatible with the Roloc TR quick-change abrasive disc system

Compatibility

Compatible with Roloc TR quick-change abrasive discs. Designed for use on grinders and die grinders with a standard 1/4-20 spindle thread.

Installation Notes

Installation is performed by threading the backing pad onto the grinder spindle by hand until fully seated — do not overtighten. Always power down and disconnect the grinder from its air or electrical supply before mounting or removing the backing pad. Verify that the tool's free-speed RPM does not exceed the 15,000 RPM rating of the pad before operation. Inspect the pad for wear, deformation, or damage before each use and replace if any deterioration is observed.