CGW 42772 is a 7 inch diameter flap disc designed for aggressive stock removal on steel surfaces. It uses a zirconia alumina grain on a durable poly/cotton backing to balance material removal with a smoother finish. The zirconia blend provides high stock removal rates, while the poly/cotton construction adds durability and helps achieve a reasonable surface quality under demanding grinding conditions. An active grinding aid is included to aid cooling and reduce the likelihood of glazing under light pressure, supporting sustained performance during extended use.
This Type 29, 40-grit flap disc is configured with a 5/8-11 hub and is rated for up to 8600 RPM, making it suitable for high-speed compact grinders commonly used in metal fabrication and maintenance environments. The combination of aggressive grain and robust backing is intended for heavy-duty applications where rapid material removal is prioritized over a fine finish. Proper usage involves applying light to moderate pressure and allowing the disc to do the work, rather than forcing contact, to maximize service life and finish quality.
Compatibility considerations include a standard 7 inch diameter with a 5/8-11 arbor, Type 29 profile for depressed-center grinding angles, and 40-grit sizing appropriate for fast stock removal on steel. Each package contains ten discs, facilitating bulk purchases for workshop or facility maintenance programs. For best results, inspect discs for wear and replace when backing or flaps show signs of excessive movement or cracking, and adhere to equipment manufacturer speed guidelines within the stated RPM rating.
Features:
- Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
- High stock removal with zirconia concentration
- Fastest stock removal in steel applications among comparable discs
- Active grinding aid for cool cutting with light pressure
- 7" diameter, 5/8-11" arbor, Type 29 profile
- XL format for extended use and coverage
- Grain:
- Zirconia
- Dia:
- 7
- Arbor/Shank Size:
- 5/8-11
- Type:
- 29
- Grit:
- 40
- RPM:
- 8600
- Package Size:
- Each
- Box Quantity:
- 10
