CGW 42316 4-1/2" X 5/8"-11 Type 27 120-Grit Z3 Zirconia Flap Disc

The CGW 42316 4-1/2" x 5/8"-11 Type 27 120-Grit Z3 Zirconia Flap Disc is designed for heavy material removal on steel surfaces. It uses premium zirconia alumina grain on a durable poly/cotton backing, combining aggressive stock removal with a favorable finish. The zirconia formulation supports continued performance under demanding grinding conditions, while the backing material provides durability and a workable surface finish during extended use. The Type 27 configuration allows grinding at a beveled angle suitable for dish-style grinding applications, enabling efficient material removal on contoured workpieces.

Key construction features include a zirconia grain concentration and an active grinding aid that promotes cooler cutting with light pressure, which can help reduce heat build-up during aggressive operations. This combination makes the disc suitable for aggressive use and heavy-duty applications where fast stock removal is prioritized and controlled heat generation is beneficial. The 120-grit size offers a balance between material removal rate and the quality of the finished surface, making it a versatile option for profiling and deburring in steelworking tasks.

Practical considerations include compatibility with standard 4-1/2" angle grinders and 5/8"-11 arbors, with a maximum RPM rating of 13,300, appropriate for many mobile and stationary grinding setups. This disc is packaged as an individual item within box quantities of 10, aligning with tooling programs that stock spare discs for ongoing project demands. When selecting this flap disc, consider the required balance of material removal rate, surface finish, and heat management for your specific tooling and workpiece geometry.

Features:

• Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
• High stock removal with zirconia concentration
• Fastest stock removal in the marketplace for steel applications
• Recommended for aggressive use and heavy-duty grinding
• Active grinding aid provides cool cutting with light pressure
• 4-1/2" diameter with 5/8-11" arbor