Dewalt DW8302 Flap Disc 60 Grit 4 Inch Type 27 Zirconia Alumina

Product Description

The DEWALT DW8302 is a Type 27 zirconia alumina flap disc designed for aggressive stock removal and surface blending on steel and stainless steel. The disc measures 4 inches in diameter with a 5/8-inch arbor hole, runs at a maximum of 15,200 RPM, and carries a 60-grit coarse abrasive. Fiberglass backing supports the flap arrangement and maintains disc integrity under lateral load. Licensed HVAC techs, metal fabricators, and pipefitters reach for this disc when grinding weld seams, cleaning base metal, or beveling plate for fit-up. It is a single-pack unit weighing approximately 1.48 pounds.

The DW8302 suits angle grinder work on ferrous and stainless steel substrates in both field and shop environments. Typical applications include weld dressing, surface preparation before coating, and edge deburring on structural steel, pipe, and sheet metal. The flat Type 27 profile keeps the disc parallel to the workpiece, making it well suited for flat grinding passes rather than aggressive edge work. This disc fits standard 5/8-inch arbor angle grinders commonly used in mechanical, plumbing, and fabrication trades.

Key Features

• Type 27 flat profile for surface grinding and blending passes
• 60-grit zirconia alumina abrasive delivers coarse, fast stock removal
• Fiberglass backing resists flex fatigue and disc separation under load
• 15,200 RPM maximum rated speed for use on standard 4-inch angle grinders
• 5/8-inch arbor hole fits common angle grinder spindles without an adapter
• Rated for steel and stainless steel material applications

Compatibility

Designed for use on standard 4-inch angle grinders with a 5/8-inch arbor spindle. Rated material applications include steels and stainless steel.

Installation Notes

Always verify the grinder's no-load RPM rating does not exceed the disc's 15,200 RPM maximum before mounting. Power down and disconnect the grinder from its power source before changing discs. Inspect the disc for cracks or damage before each use and discard any disc showing delamination or flap separation. Wear ANSI-rated eye protection and appropriate PPE whenever operating a flap disc on an angle grinder.