CGW 41705 4-1/2" X 7/8" Type 27 80-Grit ZPC Zirconia Flap Disc

CGW 41705 is a 4-1/2 inch diameter, 7/8 inch arbor Type 27 zirconia flap disc designed for grinding and finishing on steel surfaces. The disc uses zirconia grain bonded to a durable poly/cotton backing, which contributes to both effective material removal and a consistent finish during progressive grinding. With an 80-grit size, it is suited for moderate stock removal and surface refinement on ferrous metals, and its Type 27 configuration provides more aggressive, non-flat contact for grinding on contoured or curved surfaces. The design aims to balance aggressive cutting with control, reducing heat buildup and chatter on typical steel applications when used at appropriate speeds.

The product is specified for use at up to 13,300 RPM, aligning with standard safe operating speeds for its dimensions and materials. This information matters because operating at speeds beyond the rated limit can affect disc integrity and performance. The 4.5" diameter and 7/8" arbor size determine compatible tool mounts, while the Type 27 profile is intended for flat to slightly angled workpieces, enabling more contact area for efficient material removal on flat-to-curved steel surfaces. The flap disc is sold in a package configuration of individual units with ten discs per box, which supports routine maintenance cycles in workshop or facility settings.

This CGW flap disc is suitable for users performing general steel deburring, blending, and surface finishing tasks where a durable zirconia abrasive is advantageous. When selecting grinding media, ensure the arbor size matches your tool and that the working RPM does not exceed the listed maximum. Regular inspection for disc wear and secure mounting is recommended to maintain safe and effective operation.

Features:

• Zirconia grain for efficient material removal
• Poly/cotton backing for durability and finish strength
• 4-1/2" diameter, 7/8" arbor
• Type 27 flat configuration
• 80-grit for balanced stock removal and finish
• Suitable for steel applications
• Package size: 10 discs per box