CGW 42326 4-1/2" X 7/8" Type 29 120-Grit Z3 Zirconia Flap Disc

The CGW 42326 flap disc is a 4-1/2" diameter, 7/8" arbor Type 29 grinding disc designed for aggressive material removal on steel. It features zirconia-alumina grain bonded to a poly/cotton backing, combining durability with a favorable finish. The zirconia concentration enhances stock removal, supporting heavy-duty applications where rapid material removal is required. An active grinding aid is included to help maintain cooler cutting action under light pressure, which can reduce heat buildup during extended grinding sessions.

This 120-grit disc is sized for high-performance stock removal on ferrous metals, and its Type 29 profile offers an angled contact face that typically provides more aggressive cutting in bevel and edge grinding tasks. The disc is intended for use with standard 4-1/2" angle grinders and is compatible with common mounting hardware specified for 7/8" arbor shanks. With a box quantity of 10 discs per package and a stated RPM rating of 13,300, users can plan for maintenance work, fabrication, or repair tasks that demand fast progress while maintaining control and acceptable surface finish. The combination of premium grain, backing, and grinding aid is aimed at delivering efficient metal removal without sacrificing safety margins when used with appropriate PPE and guarding.

Features:

• Premium Zirconia Alumina grain on a poly/cotton backing for durability and finish
• High stock removal rate for steel applications
• Type 29 flap arrangement for aggressive material removal
• Active grinding aid provides cool cutting with light pressure
• Zirconia concentration supports high performance in heavy-duty use
• 4-1/2" diameter with 7/8" arbor, 120 grit