CGW 42105 4" X 5/8" Type 27 80-Grit Z3 Zirconia Flap Disc

The CGW 42105 4" x 5/8" Type 27 80-Grit Zirconia Flap Disc is designed for aggressive stock removal on steel surfaces. Its zirconia alumina grain is mounted on a durable poly/cotton backing that balances wear resistance with a smoother finish, supporting efficient material removal while helping to manage heat buildup during grinding. The specific Type 27 configuration provides a flatter grinding face suitable for contouring and work on relatively flat to moderately curved surfaces, enabling a more versatile approach to metal prep and finishing tasks.

Key construction features include a zirconia grain that contributes to higher stock removal rates compared with traditional aluminum oxide discs, paired with a backing that supports sustained performance under demanding use. An active grinding aid is included to aid in cooling the cut and reducing friction when operated with light pressure, which can help extend disc life and improve control during grinding of metal profiles and welds. The disc is sized for 4" wheels with a 5/8"-11 arbor, allowing compatibility with common right-angle grinders used in maintenance, repair, and fabricating settings.

When selecting this flap disc, operators should consider the need for aggressive material removal on steel and similar metals, along with the importance of using appropriate grinding pressure and technique to maximize disc life. The product is packaged as individual discs with a box quantity of 10 for convenient stocking and rotation in shop environments, ensuring project continuity on demanding metal prep tasks.

Features:

• Premium zirconia alumina grain on poly/cotton backing
• High stock removal for steel applications
• Active grinding aid for cooler cutting with light pressure
• Type 27 profile for versatility on flat and contoured surfaces
• 80-grit for aggressive material removal
• 4 inch diameter with 5/8-11 hub
• Durable construction suited for heavy-duty applications