Merit Abrasives 69957399740 Quick-change Disc 50 Grit

Product Description

The MERIT ABRASIVES 69957399740 is a quick-change abrasive disc designed for use with Power-Lock Type 1 (Type P) attaching systems on handheld disc sanders. At 3/4 inch in diameter with a 50-grit coarse aluminum oxide abrasive surface, this disc is built for stock removal and weld blending on demanding metal surfaces. The Y-weight 2-ply polyester backing provides a rigid, durable platform that resists tearing under load. A special grain coating extends disc life and improves cut rate, making this a reliable consumable for fabrication and finishing work in metal trades.

This disc is suited for use on 300 series stainless steel, 400 series stainless steel, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium. The coarse 50-grit rating makes it appropriate for initial stock removal, surface prep, and weld blending in fabrication shops, maintenance environments, and field metalwork. It is rated for handheld disc sander use and fits the Series R766 product line from Merit Abrasives.

Key Features

• 50-grit coarse aluminum oxide abrasive for aggressive stock removal and weld blending
• Y-weight 2-ply polyester backing provides rigid support and extended disc life
• Special grain coating improves cut rate on moderately demanding applications
• Power-Lock Type P attaching system for quick disc changes on compatible handheld sanders
• Rated to 40,000 RPM maximum for safe use at high spindle speeds
• Compatible with a wide range of metals including stainless steel, aluminum, brass, bronze, and titanium

Compatibility

Designed for use with handheld disc sanders equipped with a Power-Lock Type P (Type 1) quick-change attaching system. Suitable for material applications including 300 Series Stainless, 400 Series Stainless, Aluminum, Brass, Bronze, Hard Carbon Steels, Soft Carbon Steels, and Titanium.

Installation Notes

These discs are installed and replaced by machinists, fabricators, and metalworkers using compatible Power-Lock quick-change tools. Before changing a disc, power down the tool and allow the spindle to come to a complete stop. Never exceed the 40,000 RPM maximum speed rating. Inspect each disc for damage before use and discard any disc that shows cracking, delamination, or abrasive separation.