CGW 41744 4-1/2" X 7/8" Type 27 60-Grit XL ZPC Zirconia Flap Disc

CGW 41744 is a 4-1/2 inch diameter flap disc designed for heavy-duty grinding on steel. It features a Type 27 profile and a 7/8 inch arbor, suited for angle grinders commonly used in fabrication and metalworking settings. The disc uses zirconia grain bonded to a poly/cotton backing, which combines durable cutting action with a finish layer that can help reduce smear and help extend wheel life on ferrous metals. The 60-grit construction provides a balance between material removal rate and surface finish, making it appropriate for tasks such as deburring, edge shaping, and weld cleanup on steel components.

From a construction perspective, zirconia grain is known for its self-sharpening properties and resilience under higher temperatures, while the poly/cotton backing adds structural integrity to withstand repeated impacts and flex during grinding. This combination is intended to maintain consistent cutting action while helping to preserve the workpiece surface. The disc is sized for compatibility with standard 4.5" grinding tools and runs at up to 13,300 RPM, which aligns with typical high-speed metalworking applications. Packaged as individual units with a box quantity of 10, this product is suitable for shop inventories and job-site replenishment.

When selecting this flap disc, ensure your grinder’s arbor matches the 7/8" size and that the workpiece density and required finish align with a 60-grit, Type 27 configuration. Proper grinding technique and alignment are essential to maximize disc performance and minimize vibration or gouging. Regular inspection for wear and proper mounting will help maintain consistent results across use cases such as deburring welds, shaping edges, and smoothing rough metal surfaces on steel projects.

Features:

• Zirconia grain with poly/cotton backing for durability and finish strength.
• Type 27 profile for versatile grinding on flat and contoured surfaces.
• 4-1/2" diameter with 7/8" arbor size.
• 60-grit configuration for balanced material removal and surface finish.
• Designed for steel applications.
• Maximum RPM: 13300.