Merit Abrasives 08834166308 Quick-change Disc 3 in Medium

Product Description

The MERIT ABRASIVES 08834166308 is a 3-inch quick-change abrasive disc designed for surface conditioning and finishing work on metal and composite materials. It uses a Type R (Power-Lock) attaching system for fast, tool-free disc changes on compatible rotary tools. The disc combines aluminum oxide grain with a resin bond laminated onto a flexible non-woven nylon fiber backing. That construction delivers a smooth, consistent cut rate and a uniform surface finish without the aggressive stock removal associated with coated abrasive discs. Rated to 20,000 RPM, this medium-grade disc is appropriate for production-level finishing tasks on metals and composites where surface quality matters.

This disc is suited for use on 300 series stainless steel, 400 series stainless steel, fiberglass and composites, hard and soft carbon steels, super alloys, titanium, and tool steels. Compatible machines include die grinders, handheld disc sanders, inline grinders, and straight grinders. It fits workflows requiring quick disc changes between grits or tasks, making it a practical choice for sheet metal fabrication, weld blending, and surface prep in industrial and trade shop environments.

Key Features

• Type R (Power-Lock) attaching system for rapid, tool-free disc changes
• Aluminum oxide grain with resin bond for smooth cut rate and uniform finish
• Flexible non-woven nylon fiber backing resists tearing under load
• Medium grade suitable for general surface conditioning and weld blending
• Rated to 20,000 RPM for use with high-speed die and straight grinders
• Compatible with a wide range of ferrous metals, titanium, and composites

Compatibility

Designed for use with die grinders, handheld disc sanders, inline grinders, and straight grinders equipped with a Type R (Power-Lock) quick-change arbor. Suitable for material applications including 300 series stainless, 400 series stainless, fiberglass and composites, hard and soft carbon steels, super alloys, titanium, and tool steels.

Installation Notes

Installation is performed by a machinist, fabricator, or trade professional using a Type R quick-change arbor. Verify the tool spindle speed does not exceed the 20,000 RPM disc rating before mounting. Ensure the grinder is powered off and isolated from its power source before changing discs. Wear appropriate PPE including eye protection and gloves when operating grinding equipment.