Merit Abrasives 08834166398 Quick-change Disc 3in Aluminum Oxide

Product Description

The MERIT ABRASIVES 08834166398 is a 3-inch quick-change abrasive disc designed for surface finishing, blending, and light stock removal in fabrication and metalworking applications. Built with aluminum oxide grain bonded in resin and laminated onto a flexible non-woven nylon fiber backing, it delivers a smooth cut rate and consistent finish without loading or glazing. The disc attaches via a Type S button system and is rated to 20,000 RPM, making it a reliable choice for high-speed handheld grinders and die grinders. Medium grade grit suits a wide range of surface prep tasks where controlled material removal and finish uniformity matter.

This disc is suited for shop fabricators, pipe fitters, and metalworkers who need a fast-change abrasive for blending welds, deburring edges, or preparing surfaces prior to coating or inspection. It performs on a broad range of materials including 300 and 400 series stainless steel, hard and soft carbon steels, tool steels, titanium, super alloys, and fiberglass or composite substrates. Compatible machines include die grinders, inline grinders, straight grinders, and handheld disc sanders equipped with a TS or Type II quick-change arbor.

Key Features

• Aluminum oxide grain with resin bond for smooth cut rate and uniform surface finish
• Non-woven nylon fiber construction laminated to a tear-resistant backing
• Flexible disc body conforms to contoured and irregular surfaces
• Type S attaching system for tool-free disc swaps on compatible quick-change tools
• 20,000 RPM maximum speed rating for use with high-speed grinders
• Medium grade suits weld blending, deburring, and surface prep across multiple metals

Compatibility

Compatible with TS (Type II) quick-change arbors on die grinders, inline grinders, straight grinders, and handheld disc sanders. Rated for use on 300 Series Stainless, 400 Series Stainless, Fiberglass and Composites, Hard Carbon Steels, Soft Carbon Steels, Super Alloys, Titanium, and Tool Steels.

Installation Notes

Installation is performed by trade professionals including metal fabricators, pipefitters, and maintenance machinists. Ensure the grinder is powered off and disconnected from the air or electrical supply before mounting or removing the disc. Verify the tool spindle speed does not exceed the 20,000 RPM disc rating before operation. Inspect the disc for damage before each use and discard any disc that shows tears, delamination, or backing separation.