CGW 42521 is a 5 inch diameter flap disc designed for aggressive material removal on metal surfaces. Built with a zirconia alumina grain on a poly/cotton backing, this Type 29 flap disc combines durability with a quality finish while enabling high stock removal thanks to its zirconia concentration. The active grinding aid is intended to provide cooler cutting under light pressure, which can help reduce heat buildup during extended grinding sessions and may be beneficial on steel applications where heat management is a concern.
The disc is sized for compatibility with standard 7/8 inch arbor systems and operates up to 12,200 RPM, making it suitable for rapid material removal in demanding shop environments. The 36-grit configuration is positioned for aggressive material removal rather than fine finishing, making it a practical choice for initial grinding passes and heavy-duty repairs where metal stock needs to be reduced quickly.
This CGW flap disc is offered in a ready-to-use package format, with a typical box quantity of 10 discs per case, streamlining stocking and reordering in facility maintenance settings. When selecting replacements or setups, ensure wheel size, arbor size, and contact angle align with your grinder and application. Regular inspection of the disc for wear and proper seating on the arbor is recommended to maintain safe operation and consistent performance.
Features:
- Premium zirconia alumina grain on poly/cotton backing for durability and finish
- High stock removal with zirconia concentration
- Fast stock removal in steel applications
- Active grinding aid for cooler cutting under light pressure
- Type 29 flap disc with 5" diameter and 7/8" arbor
- Recommended for aggressive, heavy-duty use
- Grain:
- Zirconia
- Dia:
- 5
- Arbor/Shank Size:
- 7/8
- Type:
- 29
- Grit:
- 36
- RPM:
- 12200
- Package Size:
- Each
- Box Quantity:
- 10
