Dewalt DW8358 Type 27 Zirconia Flap Disc 4.5 in 80 Grit

Product Description

The DEWALT DW8358 is a Type 27 zirconia alumina flap disc designed for aggressive material removal and surface blending on metal. Measuring 4.5 inches in diameter with a 5/8 inches-11 threaded arbor hole, it mounts directly to standard angle grinders. The 80 grit zirconia abrasive delivers a balance of cut rate and finish quality suited for weld blending, deburring, and surface prep on mild steel and stainless steel. The Type 27 flat profile keeps the disc flush to the workpiece for flat surface grinding. This disc is a standard consumable for fabricators, ironworkers, pipefitters, and welders working with angle grinders.

The DW8358 is used in metal fabrication shops, structural steel work, pipe fabrication, and general maintenance applications. It handles flat and near-flat surface work where a Type 27 profile is preferred over a depressed-center Type 29. Typical applications include weld seam blending, rust and scale removal, and surface conditioning prior to coating or welding. The 80 grit rating makes it appropriate where moderate stock removal and a reasonably smooth finish are both required in the same pass.

Key Features

• Type 27 flat profile for flat surface grinding and blending
• 80 grit zirconia alumina abrasive for balanced cut rate and surface finish
• 4.5 inch diameter compatible with standard angle grinders
• 5/8 inches-11 threaded arbor for direct spindle mounting without an adapter
• Zirconia grain self-sharpens during use for consistent cut rate over disc life

Compatibility

Designed for use on angle grinders with a 5/8 inches-11 spindle thread accepting 4.5 inch diameter accessories. Suitable for grinding mild steel, stainless steel, and other ferrous metals.

Installation Notes

Flap discs are installed and serviced by metalworkers, fabricators, and maintenance trades using angle grinders. Always ensure the grinder is unplugged or its battery removed before mounting or removing the disc. Confirm the grinder RPM rating meets or exceeds the disc RPM rating before use, and inspect the disc for damage before each application. Thread the disc fully onto the spindle and use the supplied wrench to secure it per the grinder manufacturer torque guidance.

Technical Specifications

• Disc Diameter: 4.5 inches
• Arbor Size: 5/8 inches-11 threaded
• Grit: 80
• Abrasive Material: Zirconia Alumina
• Disc Profile: Type 27 (Flat)
• Unit of Measure: Each
• Minimum Order Quantity: 5
• UPC: 885911036061

Standard Information

• Brand: DEWALT
• Manufacturer Part Number: DW8358