Forney Industries Inc 71922 Flap Disc Type 29 ZA80 10 Pack

Product Description

The FORNEY INDUSTRIES INC 71922 is a high-density Type 29 flap disc engineered for aggressive material removal and blending on metal surfaces. Built with ZA80 zirconia alumina abrasive at 80 grit, it delivers a balance of fast cut rate and extended disc life compared to standard-density alternatives. The Type 29 conical angle presents the abrasive at an optimal work angle, making it well suited for edge work, beveling, and surface conditioning. Each package contains 10 discs, sized at 4.5 inches with a 5/8-11 threaded arbor mount for direct installation on standard angle grinders. Metal fabricators, welders, and pipefitters reach for this disc when preparing weld joints, removing mill scale, or blending seams.

This flap disc is appropriate for use in both residential shop environments and commercial fabrication settings. The 4.5-inch diameter and 5/8-11 arbor make it compatible with the most common angle grinder platform used in the trades. The ZA80 grit is a workhorse specification suited to carbon steel, stainless steel, and other hard metals where moderate stock removal with a reasonably smooth finish is the objective. The high-density flap construction extends service life on demanding continuous-use applications.

Key Features

• Type 29 conical geometry for aggressive material removal at a low work angle
• ZA80 zirconia alumina abrasive for long life and fast cut on hard metals
• High-density flap construction extends disc service life
• 4.5-inch diameter with 5/8-11 threaded arbor fits standard angle grinders
• Sold in a 10-pack quantity for consistent supply on ongoing jobs

Compatibility

Designed as an OEM-style replacement flap disc for standard 4.5-inch angle grinders equipped with a 5/8-11 threaded spindle.

Installation Notes

Flap discs are installed and serviced by metal fabricators, welders, and grinding technicians. Before mounting, power down and disconnect the angle grinder from its power source. Inspect the disc for cracks or damage before each use and confirm the grinder RPM rating meets or exceeds the disc maximum rated speed. Always use the correct guard and appropriate PPE including a face shield when operating grinding equipment.