CGW 42732 7" X 5/8"-11 Type 29 40-Grit Z3 Zirconia Flap Disc

The CGW 42732 7" X 5/8"-11 Type 29 40-Grit Z3 Zirconia Flap Disc is designed for aggressive material removal on ferrous metals. Built with premium zirconia alumina grain on a durable poly/cotton backing, this flap disc combines high stock removal with a stable finish. The zirconia concentration enhances wear resistance, enabling sustained cutting performance under demanding grinding conditions while the active grinding aid helps maintain cooler cutting temperatures with light pressure.

Key construction features include a Type 29 shape for flush grinding and access to contoured surfaces, and a 7" diameter with a 5/8"-11 arbor size to fit common right-angle grinders. The Z3 designation refers to the specific grain and bonding configuration intended for metalworking applications, supporting aggressive use and heavy-duty grinding. This disc is packaged as a single item with a box quantity of 10, making it suitable for replacement in shops requiring readily available abrasive stock.

Suitable use cases involve heavy material removal on steel and other ferrous metals where rapid stock removal and a durable finish are needed. When using flap discs, engage with steady pressure and allow the disc to do the work to avoid glazing or premature wear. Users should verify grinder compatibility with a 5/8"-11 arbor and monitor disc wear to determine replacement timing, ensuring consistent performance and surface quality throughout the project.

Features:

• Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
• High stock removal rate for steel applications
• Type 29 design for aggressive grinding angles
• 40 grit for fast material removal
• Active grinding aid provides cool cutting with light pressure
• 7" diameter with 5/8-11 arbor