Value Collection N03531 Flap Disc 40 Grit Type 27 4.5 in

Product Description

The VALUE COLLECTION N03531 is a Type 27 zirconia alumina flap disc designed for aggressive material removal on steel and stainless steel surfaces. The disc measures 4.5 inches in diameter with a 7/8 inch arbor hole and runs at a maximum speed of 13,000 RPM. At 40 grit, it falls in the coarse grade range, making it suited for weld blending, deburring, and surface conditioning tasks where fast stock removal is the priority. The fiberglass backing provides rigidity and durability under load. This pack contains 5 discs.

This flap disc is used in metal fabrication, structural steel work, and maintenance welding applications. The Type 27 flat profile is the standard choice for work on flat or slightly contoured surfaces. The zirconia alumina abrasive material delivers a self-sharpening cutting action that maintains consistent cut rates over the life of the disc. It is appropriate for use by welders, pipefitters, ironworkers, and general fabricators working with mild steel and stainless steel.

Key Features

• Type 27 flat profile for flat-surface grinding and blending
• 40 grit coarse grade for fast stock removal and weld blending
• Zirconia alumina abrasive with self-sharpening characteristics
• Fiberglass backing rated for high-density use at up to 13,000 RPM
• 7/8 inch arbor hole fits standard 4.5 inch angle grinders
• Blue disc color designation; Series R822

Compatibility

Designed for use with standard 4.5 inch angle grinders accepting a 7/8 inch arbor attachment. Suitable for grinding and finishing mild steels and stainless steel.

Installation Notes

Install only on a grinder rated at or above 13,000 RPM with a compatible 4.5 inch guard in place. Inspect the disc for cracks or damage before each use and replace if any are found. Always wear appropriate PPE including face shield and gloves when operating angle grinders. Follow ANSI B7.1 safety standards for the use of abrasive wheels.