Merit Abrasives 69957399763 Quick-change Disc 40 Grit

Product Description

The MERIT ABRASIVES 69957399763 is a 1.5-inch coated quick-change abrasive disc designed for aggressive stock removal and weld blending on metal surfaces. Built on a Y-weight 2-ply polyester backing, this disc is rated rigid and handles up to 30,000 RPM, making it suitable for fast, high-contact grinding passes. The 40-grit aluminum oxide abrasive grain features a special coating that reduces loading and extends disc life on moderately demanding applications. It attaches via a Power-Lock Type P (Type I) system and is sized for handheld disc sanders used in fabrication and maintenance work.

This disc is intended for trade and industrial use in metal fabrication, welding, and surface preparation. It performs on a broad range of materials including 300 and 400 Series Stainless Steel, aluminum, brass, bronze, hard and soft carbon steels, and titanium. The coarse 40-grit cut rate makes it well suited for weld seam blending, scale removal, and initial surface conditioning where speed of cut matters more than finish quality. It is compatible with handheld disc sanders equipped with a TP or Type I quick-change interface.

Key Features

• 40-grit aluminum oxide abrasive for fast stock removal on metal
• Y-weight 2-ply polyester backing provides rigid support and durability
• Special grain coating reduces loading and extends disc life
• Rated to 30,000 RPM for use with handheld disc sanders
• Power-Lock Type P (Type I) attachment system for tool-free disc changes
• Compatible with 300 and 400 Series Stainless Steel, aluminum, brass, bronze, carbon steels, and titanium

Compatibility

Compatible with handheld disc sanders equipped with a TP or Type I quick-change attachment system. Suitable for use on 300 Series Stainless, 400 Series Stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation is performed by metal fabricators, welders, and maintenance technicians using handheld disc sanders. Ensure the tool is powered off and disconnected from its power source before mounting or removing the disc. Verify the tool spindle speed does not exceed the 30,000 RPM maximum rating of the disc before operation. Inspect the disc for damage before each use and discard any disc that shows cracking, fraying, or delamination.