CGW 41745 4-1/2" X 7/8" Type 27 80-Grit XL ZPC Zirconia Flap Disc

CGW CGW41745 is a 4-1/2 inch diameter, 7/8 inch arbor Type 27 zirconia flap disc designed for deburring and grinding on ferrous metals. The disc features zirconia grain paired with a poly/cotton backing, which provides durability and improved finish strength during high-volume material removal. The 80-grit size offers a balance between material removal rate and a relatively smooth final surface, suitable for stock removal and edge-shaping tasks on steel substrates. The Type 27 configuration presents a recessed grinding angle for efficient material contact on flat surfaces and curved edges, helping to maintain consistent cutting action across the workpiece.

Constructed to withstand demanding grinding cycles, this flap disc combines abrasive grains with a durable backing to resist wear and maintain aggressive cutting behavior at elevated RPMs. Users should be mindful of the disc’s 13,300 RPM maximum operating speed and ensure compatible equipment is used to prevent unsafe operating conditions. When selecting flap discs, consider workpiece geometry, required surface finish, and the aggressiveness of the cut to determine whether 80 grit is appropriate for the task. Regular inspection for wear and proper mounting alignment will help preserve disc performance and safety.

Designed for steel applications, this product is packaged as individual units with a box quantity of 10, facilitating batch purchases for shop workflows. The 4-1/2" diameter and 7/8" arbor/shank size align with common angle grinders, but users should verify their grinder’s arbor compatibility and mounting flanges prior to installation. Regular maintenance of grinding tools and adherence to manufacturer safety guidelines will help maximize productivity and minimize the risk of operator injury.

Features:

• Zirconia grain on a poly/cotton backing for durability and finish strength
• Type 27 flap disc design for angled surfaces
• 4-1/2 in diameter with 7/8 in arbor
• 80-grit for balanced material removal and finish
• Suitable for steel applications
• Maximum RPM: 13300