Merit Abrasives 63642505657 Quick-change Disc 320 Grit

Product Description

The MERIT ABRASIVES 63642505657 is a TR-style quick-change abrasive disc rated for coated aluminum oxide cutting at 320 grit (extra fine). The disc measures 2 inches in diameter and is backed with an X-weight cloth for rigidity and durability under high-speed operation. It is rated to a maximum of 30,000 RPM, making it suitable for precision finishing, light deburring, and surface prep on metal and similar substrates. The Type R attaching system allows fast, tool-free disc swaps, reducing downtime during production or repair work. Sold individually, with a minimum order quantity of 25 units.

This disc is intended for use with TR and Type R compatible right-angle grinders, die grinders, and finishing tools. At 320 grit extra fine, it is well-suited for final-stage finishing passes, removing light scratches, and preparing surfaces for coating or inspection. Typical applications include metal fabrication shops, automotive body work, aerospace component finishing, and general industrial maintenance where a fine, controlled cut is required.

Key Features

• 320 grit extra fine aluminum oxide abrasive for controlled, fine-finish cutting
• TR quick-change Type R attaching system for fast, tool-free disc changes
• X-weight cloth backing provides durability and flexibility under load
• Rated to 30,000 RPM maximum operating speed
• 2-inch diameter fits compact grinders and die grinders
• Brown coated disc construction with black button

Compatibility

Designed for use with TR and Type R quick-change disc holders and compatible right-angle or die grinders accepting 2-inch quick-change accessories.

Installation Notes

Installation should be performed by personnel familiar with abrasive tooling and applicable ANSI safety standards for grinding and finishing operations. Ensure the power tool is disconnected from its power source before mounting or removing the disc. Verify the tool's rated RPM meets or does not exceed the disc's 30,000 RPM maximum before use. Inspect the disc for damage before each use and do not use discs that show cracks, tears, or delamination.