Dewalt DW8318 Type 29 Flap Disc 80 Grit 5x7/8 in

Product Description

The DEWALT DW8318 is a Type 29 zirconia flap disc engineered for aggressive material removal and blending on angle grinders. Measuring 5 inches in diameter with a 7/8-inch arbor hole, this disc runs an 80-grit abrasive that cuts fast while leaving a consistent finish on steel, stainless, and other metals. The conical Type 29 profile presents the abrasive at an angle that concentrates grinding pressure, making it well suited for weld seam removal, surface conditioning, and edge work where a flat Type 27 disc would be less effective.

This flap disc is used in fabrication shops, construction sites, and maintenance settings wherever metal grinding and blending are part of the regular workflow. It mounts on standard 5-inch angle grinders with a 7/8-inch spindle. Metalworkers, ironworkers, pipefitters, and general contractors commonly specify zirconia abrasives at 80 grit for medium-stock removal tasks that require a balance between cut rate and surface finish.

Key Features

• Type 29 conical profile for aggressive grinding and edge work
• 80-grit zirconia abrasive delivers fast stock removal with a consistent surface finish
• 5-inch diameter with 7/8-inch arbor fits standard angle grinders
• Zirconia grain self-sharpens during use, extending disc life on ferrous metals
• Sold individually — verify minimum order quantity requirements before purchasing

Compatibility

Designed as a standard replacement flap disc for 5-inch angle grinders fitted with a 7/8-inch arbor spindle.

Installation Notes

Mounting and removal should be performed by a qualified operator with the grinder unplugged or the battery removed. Verify the grinder RPM rating meets or exceeds the disc RPM rating before use. Inspect the disc for damage before each use and never operate a cracked or delaminated flap disc. Follow ANSI B7.1 and applicable workplace safety standards when handling and operating abrasive wheels.

Technical Specifications

• Disc Diameter: 5 inches
• Arbor Size: 7/8 inches
• Grit: 80
• Abrasive Material: Zirconia
• Disc Type: Type 29
• Weight: 0.23 pounds
• Sold As: Each

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: DW8318