CGW 42346 4-1/2" X 7/8" Type 27 120-Grit XL Z3 Zirconia Flap Disc

CGW 42346 4-1/2 in x 7/8 in Type 27 120-Grit XL Zirconia Flap Disc is designed for heavy-duty grinding on ferrous metals. This flap disc combines premium zirconia alumina grain with a poly/cotton backing to deliver both durability and a quality finish while maintaining aggressive stock removal. The Zirconia concentration enhances material removal rates, especially on harder metals, making it suitable for intensive grinding tasks where speed matters. An active grinding aid is included to help maintain cooler cutting conditions under light pressure, which can reduce heat buildup and prolong abrasive life during prolonged use.

The disc is configured as Type 27 for work at angles that optimize grinding contact on flat and contoured surfaces. It features a 4.5 inch diameter with a 7/8 inch arbor, aligning with common grinder tooling for sheet metal, structural steel, and similar substrates. The XL construction suggests a higher volume of abrasive friable layers, contributing to extended lifespan in demanding applications. This product is intended for aggressive use and heavy-duty applications, where maximum material removal per pass is prioritized over finish quality on initial passes.

For practical use, verify compatibility with your grinder’s RPM rating and the 13,300 RPM maximum specified for this disc to avoid over-speed conditions. The package is sold as each, with a box quantity of 10, which supports stocking and multiple-use needs in maintenance and fabrication environments. As with all zirconia flap discs, proper wheel alignment, mounting, and personal protective equipment are essential to ensure safe and effective operation.

Features:

• Premium Zirconia Alumina grain on a poly/cotton backing for durability and finish
• Zirconia concentration enables high stock removal
• Fastest stock removal in the marketplace for steel applications
• Recommended for aggressive use and heavy-duty grinding
• Active grinding aid for cooler cutting with light pressure
• Type 27 configuration for versatile grinding angles
• XL design suitable for extended use