Merit Abrasives 69957399786 Quick-change Disc 36 Grit

Product Description

The MERIT ABRASIVES 69957399786 is a coated quick-change abrasive disc designed for aggressive stock removal and weld blending on metal surfaces. Part of the R766 Series, it features premium aluminum oxide grain bonded to a Y-weight 2-ply polyester backing, delivering a rigid disc with a special grain coating for faster cut rates and extended service life. The disc measures 3 inches in diameter and carries a 36 grit rating, placing it in the extra coarse grade range. It attaches via a Type P Power-Lock (TP / Type I) quick-change system and is rated to a maximum of 20,000 RPM. Licensed trades and metal fabrication professionals reach for this disc when fast material removal is the priority.

This disc is suited for moderately demanding grinding and blending tasks on a wide range of metals. It mounts to handheld disc sanders equipped with a compatible Power-Lock Type I quick-change arbor. Typical applications include weld seam blending, surface preparation, and initial stock removal on structural and fabricated metal components. The rigid backing maintains consistent contact pressure across flat and slightly contoured work surfaces, making it practical for both bench-side and field use.

Key Features

• 36 grit extra coarse aluminum oxide grain for aggressive stock removal and weld blending
• Y-weight 2-ply polyester backing provides a rigid platform that resists flex under load
• Special grain coating extends disc life and improves cut rate on moderately demanding applications
• Power-Lock Type P quick-change attachment (TP / Type I compatible) for fast disc swaps without tools
• 20,000 RPM maximum speed rating suits standard handheld disc sanders
• Rated for use on 300 and 400 Series stainless, aluminum, brass, bronze, hard and soft carbon steels, and titanium

Compatibility

Designed for use with handheld disc sanders equipped with a Power-Lock Type I (TP) quick-change arbor. Rated for material removal on 300 Series stainless, 400 Series stainless, aluminum, brass, bronze, hard carbon steels, soft carbon steels, and titanium.

Installation Notes

Installation and disc changes should be performed with the tool unplugged or the air supply disconnected. Verify the arbor type is Power-Lock Type I before mounting. Inspect the disc for damage before each use and do not exceed the 20,000 RPM maximum speed rating. Wear appropriate PPE including eye protection and gloves when operating abrasive discs.