CGW 42165 4" X 5/8" Type 29 80-Grit XL Z3 Zirconia Flap Disc

The CGW 42165 is a 4-inch, 5/8-11 hex shank Type 29 zirconia flap disc designed for aggressive material removal on steel surfaces. Its premium zirconia alumina grain on a durable poly/cotton backing delivers both robust stock removal and a refined finish, making it suitable for heavy-duty grinding tasks where faster material removal is prioritized. The inclusion of zirconia grain provides higher hardness and wear resistance, contributing to extended disc life in demanding applications while the active grinding aid helps maintain cooler cutting action under light pressure.

Constructed to balance aggressive stock removal with control, this flap disc features a 80-grit sizing appropriate for shaping, blending, and finishing work in metal fabrication, maintenance, and repair contexts. The Type 29 angle grinds at a flatter profile for versatility across a range of contours and workpieces, while the 4-inch diameter with a 5/8-11 arbor size ensures compatibility with common grinders and accessory setups. The disc is packaged as individual units, with a box quantity of 10, supporting efficient stocking and workflow planning in shop environments.

When selecting this flap disc, consider the application requirements for material type and finish level, as well as the need for cool-cutting performance under light pressure. The product’s specifications indicate its intended use for aggressive use and heavy-duty applications on steel, with a focus on rapid material removal without compromising control or finish quality during intermediate grinding tasks. Regular inspection for wear and potential disc voids is advised to maintain consistent performance and safety in operation.

Features:

• 4" diameter, 5/8-11 hub
• Type 29 for angled grinding
• 80-grit zirconia abrasive for high stock removal
• Poly/cotton backing for durability and finish
• Active grinding aid for cooler cutting
• XL design for extended life
• Suitable for aggressive steel applications