Tru-maxx TRU-RR304H Disc Backing Pad Quick-change Type R

Product Description

The TRU-MAXX TRU-RR304H is a 3-inch disc backing pad designed for use with Quick-Change Type R abrasive discs. It features a 1/4-20 female thread and a 1/4-inch shank diameter, allowing it to mount to standard die grinders and right-angle grinders. Rated to a maximum of 20,000 RPM, the pad is built with a hard density construction for consistent disc support across a range of surface preparation and finishing tasks. It is compatible with the Quick-Lok quick-change disc system. This backing pad is a standard consumable accessory used by metalworkers, fabricators, and maintenance technicians.

This backing pad is suited for light to medium surface preparation work including deburring, blending, and finishing on metal surfaces. It accepts Quick-Lok Type R quick-change discs, which can be swapped without tools, reducing downtime during production or field work. The hard density pad provides firm backing for controlled material removal. The 1/4-20 female thread accepts standard grinder mandrel shanks, making it straightforward to integrate into existing tool setups commonly found in metal fabrication shops, maintenance facilities, and manufacturing environments.

Key Features

• 3-inch pad diameter for compatibility with standard quick-change disc sizes
• Quick-Change Type R design accepts Quick-Lok discs without additional hardware
• 1/4-20 female thread with 1/4-inch shank diameter fits common die grinder mandrels
• Hard density construction provides firm, consistent backing for controlled material removal
• Rated to 20,000 RPM for use with high-speed pneumatic and electric grinders

Compatibility

Designed for use with Quick-Lok Type R quick-change abrasive discs on die grinders and right-angle grinders equipped with a 1/4-20 threaded mandrel.

Installation Notes

This pad is installed by a metalworker or maintenance technician onto a die grinder or right-angle grinder mandrel. Disconnect the air supply or unplug the tool before attaching or removing the backing pad. Thread the pad onto the mandrel by hand and verify it is fully seated before mounting a disc. Do not exceed the rated maximum RPM of 20,000; confirm the tool speed is within the rated limit before operation.