Merit Abrasives 63642505672 Quick-change Disc 3in 50 Grit

Product Description

The MERIT ABRASIVES 63642505672 is a coated quick-change abrasive disc designed for Roloc TR and Type R attachment systems. It features a 3-inch diameter, 50-grit aluminum oxide abrasive bonded to a cloth backing with an X-weight backing grade. The aluminum oxide grain delivers consistent stock removal on ferrous and non-ferrous metals, welds, and surface scale. This disc is rated to 20,000 RPM and is well suited for use with angle grinders and die grinders equipped with a TR or Type R mandrel. It is sold individually with a minimum order quantity of 25 units.

This disc is used in metal fabrication, weld blending, deburring, and surface preparation applications. The 50-grit coarse grade makes it appropriate for aggressive material removal on steel, aluminum, and similar substrates. It fits standard quick-change grinder setups common in automotive, manufacturing, and general metalworking environments. The brown cloth backing provides durability under moderate-to-heavy grinding loads.

Key Features

• 3-inch diameter fits standard TR and Type R quick-change mandrels
• 50-grit coarse aluminum oxide grain for aggressive stock removal
• Cloth backing with X-weight rating for durability under load
• Rated to 20,000 RPM for use with die grinders and angle grinders
• Roloc TR attachment system for fast, tool-free disc changes
• Brown disc color with black button for easy grit identification

Compatibility

Designed for use with Roloc TR and Type R quick-change mandrel systems on die grinders and angle grinders.

Installation Notes

Installation is performed by pressing the disc onto a compatible TR or Type R mandrel and rotating to lock. Always verify that the grinder spindle speed does not exceed the 20,000 RPM disc rating before operation. Wear appropriate PPE including eye protection and gloves when operating abrasive grinding equipment. Inspect the disc for damage before each use and discard any disc that shows cracking, delamination, or deformation.