Dewalt DW8315 Flap Disc 40 Grit Type 29 5 Inch

Product Description

The DEWALT DW8315 is a Type 29 zirconia alumina flap disc designed for aggressive material removal on steel and stainless steel surfaces. The 5-inch disc features a fiberglass backing and a 7/8-inch arbor hole, with a maximum operating speed of 12,200 RPM. The 40-grit coarse abrasive cuts fast on welds, scale, and rough stock, making it a go-to choice for metal fabricators, pipefitters, and ironworkers running angle grinders in fabrication shops or field settings. The conical Type 29 profile increases surface contact on flat and contoured workpieces for consistent stock removal.

The DW8315 is suited for grinding and blending operations on mild steel and stainless steel. The zirconia alumina abrasive self-sharpens during use, maintaining cut rate over the life of the disc. Common applications include weld seam removal, surface prep before coating or welding, and edge cleanup on structural steel. This disc is a standard fit for 5-inch angle grinders used in fabrication, maintenance, and construction trades.

Key Features

• Type 29 conical profile increases contact area on flat and curved surfaces
• Zirconia alumina abrasive self-sharpens for sustained cut rate
• 40-grit coarse grade for fast stock removal and weld grinding
• Fiberglass backing provides rigidity and support under load
• Rated to 12,200 RPM for use on standard 5-inch angle grinders
• Suitable for both mild steel and stainless steel applications

Compatibility

Designed for use on 5-inch angle grinders with a 7/8-inch arbor. Rated for material removal on steels and stainless steel per the supplier-stated material application data.

Installation Notes

Installation is performed by metalworkers and grinding trades familiar with angle grinder safety. Confirm the grinder RPM rating meets or exceeds 12,200 RPM before mounting. Power down and disconnect the grinder from its power source before mounting or removing the disc. Always inspect the disc for cracks or damage before use and follow ANSI B7.1 safety requirements for abrasive wheel mounting and guarding.