The CGW 42103 4" x 5/8" Z3 Zirconia Flap Disc is designed for aggressive material removal on metal surfaces. This Type 27 flap disc features premium zirconia alumina grain bonded to a durable poly/cotton backing, which supports both fast stock removal and a smoother finish. The zirconia concentration is chosen to balance grinding efficiency with extended life, making it suitable for heavy-duty grinding tasks where higher material removal rates are needed.
Key construction details include a 4-inch diameter wheel with a 5/8-11 inch arbor and a 40-grit specification, optimizing it for aggressive grinding while maintaining control. An active grinding aid is incorporated to help reduce heat buildup, allowing for cooler cutting with light pressure, which can improve surface quality and extend disc life under demanding use. The combination of grain and backing material is intended to provide durability during repeated passes on steel and other common metal substrates.
This flap disc is packaged as an individual item in sets of ten per box, aligning with typical maintenance and shop stocking practices. When selecting speed, ensure operation within the stated RPM (up to 15,300 RPM) to maintain safe performance and disc integrity. Practically, it pairs with standard 4" grinding tools having 5/8-11 arbors and Type 27 grinding applications, making it a versatile choice for aggressive stock removal in fabrication, maintenance, and metalworking environments.
Features:
- Premium zirconia alumina grain on a poly/cotton backing for durability and finish
- High stock removal with zirconia concentration
- Fastest stock removal in the marketplace for steel applications
- Active grinding aid enables cool cutting with light pressure
- 4" diameter, 5/8-11" arbor, Type 27, 40-grit
- Suitable for aggressive use and heavy-duty applications
- Grain:
- Zirconia
- Dia:
- 4
- Arbor/Shank Size:
- 5/8-11
- Type:
- 27
- Grit:
- 40
- RPM:
- 15300
- Package Size:
- Each
- Box Quantity:
- 10
