Dewalt DWA8282H Flap Disc 80 Grit Ceramic Type 29 4.5 in

Product Description

The DEWALT DWA8282H is a Type 29 ceramic alumina flap disc rated for grinding and blending on steel and stainless steel surfaces. The conical Type 29 geometry presents the abrasive at an angle, increasing contact area and aggressiveness compared to a flat Type 27 disc. At 80 grit, this disc falls in the medium grade range, removing material efficiently while leaving a finish suitable for follow-up work. A cotton backing provides flexibility and durability under load. The disc is designed for angle grinders with a 5/8-11 threaded arbor and is rated to a maximum of 8,700 RPM.

This flap disc is suited for fabrication shops, structural steel contractors, pipeline crews, and stainless steel fabricators who need consistent stock removal and blending in a single step. The ceramic alumina abrasive is well-matched to hard metals where aluminum oxide would break down quickly, making it a strong choice for stainless steel work where heat control and cut rate both matter. Typical applications include weld blending, surface prep before coating, and deburring on flat and contoured workpieces.

Key Features

• Type 29 conical geometry for aggressive material removal on flat and contoured surfaces
• Ceramic alumina abrasive for extended performance on steel and stainless steel
• 80 grit medium grade balances cut rate with surface finish quality
• Cotton backing adds flexibility and resists delamination under heavy grinding pressure
• 5/8-11 threaded arbor hole fits standard angle grinders
• 8,700 RPM maximum speed rating for safe use on compatible 4.5-inch angle grinders

Compatibility

Designed for use with angle grinders equipped with a 5/8-11 threaded spindle and a 4.5-inch disc capacity. Rated for use on steels and stainless steel. Verify that the grinder speed does not exceed 8,700 RPM before mounting.

Installation Notes

Installation should be performed by a qualified operator familiar with angle grinder safety. Always power down and disconnect the grinder from its power source before mounting or removing a disc. Confirm the disc guard is in place and that the grinder RPM rating does not exceed the 8,700 RPM maximum marked on the disc. Inspect the disc for cracks or damage before each use and do not use a damaged disc.