Merit Abrasives 69957399726 Quick-change Disc 180 Grit 3in

Product Description

The MERIT ABRASIVES 69957399726 is a 3-inch coated abrasive quick-change disc designed for handheld disc sanders in demanding metal fabrication and finishing applications. Built on a rigid X-weight 2-ply polyester backing, this disc delivers fast cut rates and extended service life compared to standard cloth-backed designs. The aluminum oxide abrasive runs at up to 20,000 RPM and falls in the very fine grade range at 180 grit, making it well suited for deburring, cleaning, and detail finishing on hard and soft metals. It mounts via a Type R Power-Lock attachment system for tool-free disc changes.

This disc is rated for use on 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium. It fits the Merit Abrasives R766 series and is sized for handheld disc sanders accepting 3-inch quick-change discs with a Type R attachment hub. The rigid polyester backing resists flex, keeping consistent abrasive contact on flat and contoured work surfaces. Typical applications include weld cleanup, surface prep, and fine detailing in metal fabrication shops and field service environments. Sold individually with a minimum order quantity of 50 units.

Key Features

• 180 grit aluminum oxide abrasive for very fine deburring and detail finishing
• Rigid X-weight 2-ply polyester backing for durability and consistent cut
• Type R Power-Lock attachment for fast, tool-free disc changes
• Rated to 20,000 RPM for use with standard handheld disc sanders
• Compatible with 300 series stainless, brass, bronze, carbon steels, and titanium
• R766 series construction with coated brown finish for extended abrasive life

Compatibility

Designed for handheld disc sanders accepting 3-inch quick-change discs with a Type R Power-Lock hub. Rated for use on 300 series stainless steel, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation is performed by pressing the disc onto a compatible Type R Power-Lock mandrel until it locks into place. Ensure the disc is fully seated before operation and confirm the tool spindle speed does not exceed 20,000 RPM. Always wear appropriate eye and hand protection when operating abrasive discs. Remove the disc and inspect the mandrel for wear if unusual vibration or wobble is detected during use.