CGW 42375 4-1/2" X 5/8"-11 Type 29 80-Grit XL Z3 Zirconia Flap Disc

The CGW 42375 4-1/2" x 5/8"-11 Type 29 80-Grit XL Zirconia Flap Disc is designed for fast material removal on steel and related metals. This disc features premium zirconia alumina grain mounted on a durable poly/cotton backing, combining aggressive stock removal with a smoother finish. The zirconia formulation enhances longevity and cutting efficiency, helping maintain consistent performance during heavy-duty grinding tasks. An active grinding aid is included to promote cooler cutting under light to moderate pressure, which can help manage heat buildup during extended use.

Key construction details support its intended purpose: a Type 29 shape designed for grinding at a slight angle to the workpiece, with an 4.5-inch diameter and a 5/8-inch-11 arbor to fit compatible right-angle grinders. The 80-grit size strikes a balance between rapid material removal and the level of finish achievable on basic metalworking jobs. The XL designation indicates an extended life construction relative to standard flap discs, making it suitable for aggressive use and heavy-duty applications where faster material removal is prioritized over a high-gloss finish. The product is packaged with a per-unit count of one disc, with boxes containing ten discs for easy stocking and replacement in busy workshop settings.

When selecting this disc, consider the workpiece material, desired removal rate, and the need to manage heat during grinding. The combination of zirconia grain and the poly/cotton backing is intended to provide durability under repeated passes while maintaining reasonable surface quality. Ensure proper PPE and use jigs or clamps to secure workpieces, and follow standard grinder safety practices during operation.

Features:

• Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
• High stock removal with aggressive performance on steel
• Active grinding aid for cool cutting with light pressure
• Type 29 flap design for aggressive grinding angles
• XL construction for extended life and consistent performance
• Arbor size 5/8-11" and diameter 4-1/2"