Merit Abrasives 63642505678 Quick-change Disc Tr 3in 180G

Product Description

The MERIT ABRASIVES 63642505678 is a coated quick-change disc designed for fast material removal and finishing on metal and similar surfaces. Built with aluminum oxide abrasive on a cloth backing with an X-weight backing grade, this disc delivers consistent cut and durability under heavy use. It operates at a maximum of 20000 RPM and measures 3 inches in diameter, making it a compact option for angle grinders and rotary tools equipped with a TR or Type R quick-change attachment system. The 180 grit rating places it in the very fine grade range, suited for surface prep, light deburring, and finish work. Licensed trade professionals and industrial technicians are the typical installers and users.

This disc is used in metal fabrication, maintenance, and surface conditioning applications where a fast disc swap is required. The TR quick-change attachment system allows tool-free disc changes, reducing downtime on the job. The brown aluminum oxide abrasive is well matched to ferrous metals, stainless steel, and general-purpose grinding and finishing tasks. It is sold individually with a minimum order quantity of 25 units, making it suitable for shop stocking and regular production use.

Key Features

• 3 inches diameter with TR and Type R quick-change compatibility for tool-free swaps
• 180 grit aluminum oxide abrasive rated very fine for finish grinding and surface prep
• Cloth backing with X-weight grade for flexibility and durability under load
• Rated to 20000 RPM maximum for use with standard pneumatic and electric rotary tools
• Coated abrasive construction in brown for consistent cut life on ferrous and general metals
• Black button color for quick visual identification of attachment type

Compatibility

Designed for use with TR and Type R quick-change attachment systems on angle grinders, die grinders, and rotary tools that accept 3-inch quick-change discs.

Installation Notes

Always power down and disconnect the tool from its air or electrical supply before changing discs. Verify the tool spindle speed rating meets or exceeds the 20000 RPM maximum listed on the disc before use. Inspect the disc for cracks or damage prior to installation and do not use damaged discs. Follow all applicable ANSI and tool manufacturer safety guidelines for abrasive disc mounting and guarding.