Merit Abrasives 69957399778 Quick-change Disc 2 in 80 Grit

Product Description

The MERIT ABRASIVES 69957399778 is a 2-inch aluminum oxide quick-change abrasive disc designed for coated abrasive applications on handheld disc sanders. It uses a Power-Lock Type 1 (TP/Type P) attaching system for fast, tool-free disc changes on compatible right-angle and straight sanders. The disc features a Y-weight 2-ply polyester backing rated for rigidity and durability, with a special grain coating that supports longer service life and a faster cut rate. At 80 grit, it falls in the medium-to-coarse range, making it well suited for stock removal and weld blending on moderately demanding workpieces. Maximum rated speed is 30,000 RPM.

This disc is used in metal fabrication, welding, and finishing trades where fast material removal is needed on harder substrates. It is rated for use on 300 series stainless steel, 400 series stainless steel, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium. Typical install scenarios include weld seam blending, surface prep before coating or inspection, and deburring operations on structural or sheet metal components. It is sold individually but requires a minimum order quantity of 100 units.

Key Features

• Power-Lock Type 1 (TP/Type P) quick-change attachment for tool-free disc swaps
• 80 grit aluminum oxide abrasive for coarse stock removal and weld blending
• Y-weight 2-ply polyester backing provides rigidity for demanding surface work
• Special grain coating extends disc life and maintains cut rate
• 30,000 RPM maximum rated speed for compatibility with standard handheld disc sanders
• Rated for use across a broad range of ferrous and non-ferrous metals

Compatibility

Designed for use with handheld disc sanders that accept Power-Lock Type 1 (TP/Type P) quick-change mandrels. Compatible material applications include 300 series stainless, 400 series stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation is performed by metalworkers and fabricators using a compatible quick-change mandrel; no additional tools are required to seat or release the disc. Confirm the mandrel and grinder are rated at or above 30,000 RPM before mounting. Disconnect power and verify the tool is fully stopped before changing discs. Always inspect the disc for damage before use and do not exceed the rated maximum RPM.