Merit Abrasives 08834166309 Quick-change Disc 3 in Fine

Product Description

The MERIT ABRASIVES 08834166309 is a 3-inch quick-change abrasive disc engineered for fast, controlled surface finishing on metal and composite materials. It uses aluminum oxide grain bonded with resin to deliver a smooth cut rate and a consistent, uniform finish. The non-woven nylon fiber construction is laminated to a flexible, tear-resistant backing, making it well-suited for contour work and blending applications. Rated to 20,000 RPM, this disc is built for high-speed portable tools used by metal fabricators, pipefitters, and maintenance technicians working in demanding shop or field environments.

This disc is designed for use on 300 and 400 Series stainless steel, hard and soft carbon steels, tool steels, super alloys, titanium, and fiberglass or composite substrates. It mounts via a TR (Type III) quick-change Power-Lock attachment system and is compatible with die grinders, inline grinders, straight grinders, and handheld disc sanders. The Fine grade makes it appropriate for deburring, blending weld seams, and preparing surfaces for coating or inspection on precision metalwork.

Key Features

• Aluminum oxide grain with resin bond produces a smooth cut rate and uniform finish
• Non-woven nylon fibers laminated to a flexible backing that resists tearing
• TR (Type III) Power-Lock quick-change attachment for fast disc swaps without tools
• Rated to 20,000 RPM for compatibility with high-speed portable grinders
• Fine grade suitable for blending, deburring, and pre-coat surface preparation
• Brown disc color with black button for quick visual grade identification

Compatibility

Designed for use with TR (Type III) quick-change Power-Lock mandrels on die grinders, inline grinders, straight grinders, and handheld disc sanders. Compatible material applications include 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 metal fabricators or maintenance technicians using a compatible TR (Type III) quick-change mandrel. Ensure the tool is powered off and unplugged 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 or delamination before each use and discard if any defects are present.