CGW 42345 4-1/2" X 7/8" Type 27 80-Grit XL Z3 Zirconia Flap Disc

The CGW 42345 is a 4-1/2 inch diameter, 7/8 inch arbor Type 27 flap disc designed for aggressive material removal on steel. It features a premium zirconia alumina grain bonded to a poly/cotton backing, combining durable stock removal with a smoother finish. The zirconia concentration enhances wear resistance, enabling efficient material removal in heavy-duty grinding operations. An active grinding aid is included to help maintain cooler cutting action when operated with light to moderate pressure, which can reduce heat buildup on the workpiece.

This flap disc is constructed to support demanding applications that require fast stock removal and sustained performance. Its Type 27 profile is optimized for surface grinding, offering access to contouring and angles typical of metal fabrication and maintenance tasks. The combination of zirconia grain and a sturdy backing makes it suitable for continuous use in industrial environments where aggressive material removal is needed, while the cooling aid helps mitigate chatter and heat-relatedConcerns when working with thicker stock. Use it in metalworking settings that require high material removal rates on steel, with attention to recommended feeding pressure to maximize the tool’s lifespan and achieve the desired finish.

Compatibility is defined by its 4-1/2" diameter and 7/8" arbor size, Type 27 configuration, and 80-grit zirconia grain. The product is packaged as individual discs with a box quantity of 10, making it straightforward to stock and replace in maintenance operations. For best results, ensure proper wheel speed within the RPM range and inspect discs for wear or damage before mounting to avoid vibration and surface imperfections.

Features:

• Premium zirconia alumina grain for high stock removal
• Durable poly/cotton backing supports finish and longevity
• Active grinding aid for cool cutting with light pressure
• Type 27 flap disc design for efficient grinding on angled surfaces
• 80-grit for aggressive material removal
• 4-1/2" diameter with 7/8" arbor size
• Maximum RPM: 13,300