CGW 42322 4-1/2" X 7/8" Type 29 40-Grit Z3 Zirconia Flap Disc

The CGW 42322 4-1/2" x 7/8" Type 29 40-Grit Z3 Zirconia Flap Disc is designed for aggressive material removal on steel surfaces. It combines premium zirconia-alumina grain with a poly/cotton backing to deliver durability and a smoother finish during heavy-duty grinding. The zirconia concentration supports higher stock removal rates, making this disc well-suited for applications that require fast material removal without excessive heat buildup when used with light to moderate pressure.

Key construction features include the Type 29 profile for angled grinding, a 4.5-inch diameter, and a 7/8-inch arbor/shank size that fits common grinders. The integrated grinding aid helps maintain cooler cutting performance, which can reduce transfer of heat to the workpiece and prolong wheel life under demanding use. The 40-grit formulation provides a balance between aggressive material removal and the ability to produce a relatively smooth finish on steel substrates.

Practical use considerations include selecting this disc for fabrication and maintenance tasks that require rapid stock removal on steel while managing heat and finish. The product is packaged as a single disc with 10 discs per box, aligning with shop reload needs and inventory planning. Compatibility notes should be confirmed with your grinder mounting system and arbor sizing to ensure proper fit and safe operation per standard PPE and shop practices.

Features:

• Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
• High stock removal with zirconia concentration
• Fastest stock removal in the marketplace for steel applications
• Recommended for aggressive use and heavy-duty tasks
• Active grinding aid provides cool cutting with light pressure
• Type 29 flap disc with 4-1/2" diameter and 7/8" arbor