Dewalt DW8308AL Flap Disc 60 Grit 4.5 Inch Type 29

Product Description

The DEWALT DW8308AL is a Type 29 flap disc engineered for aggressive material removal on steel and stainless steel surfaces. Built with aluminum oxide abrasive bonded to a fiberglass backing, this disc runs at a maximum of 13,300 RPM on a 4.5-inch angle grinder. The Type 29 conical geometry increases surface contact at low angles, making it effective for blending, deburring, and weld dressing on flat and contoured workpieces. At 60 grit, it sits in the medium-to-coarse range, removing material quickly while leaving a surface ready for finer finishing passes. Fabricators, pipefitters, and welders are the primary users of this disc.

This disc is suited for metal fabrication shops, structural steel work, and maintenance applications where both carbon steel and stainless steel are processed. The 7/8-inch arbor hole fits standard angle grinder spindles. The fiberglass backing resists flex fatigue during extended grinding sessions. It is sold individually and is well-matched for spot work, weld seam blending, and surface prep ahead of coating or inspection on both flat plate and pipe work.

Key Features

• Type 29 conical flap design increases contact angle for blending and weld removal
• 60 grit aluminum oxide abrasive for fast, controlled stock removal
• Fiberglass backing provides rigidity and durability under load
• Rated to 13,300 RPM for use on standard 4.5-inch angle grinders
• 7/8-inch arbor hole fits common grinder spindle sizes
• Compatible with both carbon steel and stainless steel applications

Compatibility

Designed for use on steel and stainless steel with standard 4.5-inch angle grinders equipped with a 7/8-inch arbor. Verify that the grinder's no-load RPM does not exceed the 13,300 RPM disc rating before mounting.

Installation Notes

Installation is performed by grinding or metalworking professionals. Power down and disconnect the grinder from its power source before mounting or removing any disc. Ensure the disc RPM rating meets or exceeds the tool's rated speed and inspect the disc for damage before each use. Wear appropriate PPE including a face shield and hearing protection during operation, per ANSI B7.1 and tool manufacturer guidelines.