Merit Abrasives 69957399789 Quick-change Disc 60 Grit 3 in

Product Description

The MERIT ABRASIVES 69957399789 is a coated quick-change abrasive disc engineered for use with Power-Lock Type 1 (TP/Type P) attaching systems on handheld disc sanders. This 3-inch diameter disc runs at up to 20,000 RPM and carries a 60-grit aluminum oxide abrasive, placing it in the medium-to-coarse grade range for aggressive stock removal and weld blending. The abrasive grain is set on a rigid Y-weight 2-ply polyester backing, which resists flex and loading during sustained grinding passes. A special grain coating extends disc life and maintains a faster cut rate compared to standard uncoated constructions. This disc is sold individually with a minimum order quantity of 50 units.

The 69957399789 is suited to moderately demanding metal fabrication and surface preparation tasks in both shop and field environments. Typical applications include stock removal, weld bead blending, and surface conditioning on 300 and 400 series stainless steel, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium. It mounts to handheld disc sanders equipped with a compatible Power-Lock Type P quick-change arbor, making disc swaps fast during multi-step finishing workflows. This disc is appropriate for use by metal fabricators, maintenance technicians, and trade professionals who require consistent cut performance across ferrous and non-ferrous substrates.

Key Features

• 60-grit aluminum oxide abrasive for aggressive stock removal and weld blending
• Rigid Y-weight 2-ply polyester backing resists flex and premature disc failure under load
• Special grain coating extends usable disc life and improves cut rate on demanding materials
• Power-Lock Type 1 (TP/Type P) quick-change compatibility for fast tool-free disc changes
• Rated to 20,000 RPM for use with standard handheld disc sanders
• Suitable for 300 and 400 series stainless, aluminum, brass, bronze, carbon steels, and titanium

Compatibility

Designed for handheld disc sanders fitted with a Power-Lock Type P (Type I/TP) quick-change arbor system. Compatible material applications include 300 Series Stainless, 400 Series Stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

This disc is installed and removed by a licensed or qualified operator using the tool manufacturer's recommended quick-change arbor procedure — no additional fasteners are required. Before mounting or removing any abrasive disc, power down the tool and confirm the spindle has come to a complete stop. Do not exceed the 20,000 RPM maximum speed rating marked on the disc. Always inspect the disc for cracks or damage before each use and follow ANSI B7.1 safe-use guidelines for bonded and coated abrasives.