Weiler 7" Big Cat Abrasive Flap Disc, Flat (TY27), Phenolic Backing, 40Z, 5/8"-11 UNC Nut

This WEILER Big Cat 7-inch Type 27 flap disc delivers heavy-duty grinding performance with its high-density flap design and 40-grit zirconia alumina abrasive. The disc measures 7 inches in diameter with a flat profile and phenolic backing, designed for 5/8"-11 UNC threaded spindles on right angle grinders. Maximum operating speed is 8,600 RPM for aggressive material removal on steel and stainless steel.

The high-density construction features wider, thicker flaps that conform to curved and irregular surfaces while maintaining consistent contact. This design delivers 30-40% longer life compared to standard density flap discs. The zirconia alumina grains self-sharpen under heat and pressure, making this disc ideal for edge beveling, chamfering, weld grinding, and surface blending. The metal nut mounting system prevents cross-threading and eliminates spindle sticking from heat buildup.

Built contaminant-free with less than 0.1% Fe, S, and Cl content, this disc works at grinding angles between 0-15 degrees. The thicker phenolic backing provides stability for the heavy-duty cloth configuration, while the blue-colored abrasive indicates the zirconia alumina grain type for easy identification during use.