CGW 39435 4-1/2" X 5/8"-11 Type 29 80-Grit A3 Aluminum Oxide Flap Disc

The CGW 39435 flap disc is a 4-1/2 inch diameter, 5/8-11 arbor Type 29 disc designed for versatile metalworking and material finishing. It uses premium aluminum oxide grain mounted on a durable polyester backing, providing consistent cutting action and controlled material removal on a range of substrates. The 80-grit sizing offers a balance between material removal rate and surface finish, making it suitable for general deburring, edge blending, and light honing tasks on ferrous and non-ferrous metals, as well as plastics and wood in some applications. The Type 29 profile delivers the traditional ‘fl ap’ angle for aggressive grinding with a flatter working surface, which helps maintain contact with contours and provides better access to angled edges and welds compared to flatter discs.

The disc is engineered to operate at up to 13,300 RPM, which aligns with standard high-speed portable grinders used in fabrication, maintenance, and repair environments. This specification matters because maintaining proper speed ensures optimal grit performance, longer disc life, and predictable finish characteristics. Each package includes ten discs, allowing for multiple uses before restocking while supporting consistent scheduling in shop or field maintenance programs. While the exact recommended usage parameters are not provided here, operators should follow tool manufacturer guidelines for speed, pressure, and dressing intervals to prevent glazing or glazing-induced heat buildup.

This CGW4680 series disc is compatible with 4-1/2 inch grinders equipped with a 5/8-11 arbor. Proper mounting and securing of the disc, along with inspection for wear or damage prior to use, help ensure safe operation. For maintenance, inspect the backing and edge integrity and replace discs showing cracks, missing segments, or excessive wear to maintain consistent performance in metal finishing tasks.

Features:

• Premium Aluminum Oxide grain on polyester backing for durability
• Type 29 profile for aggressive material removal
• 4-1/2" diameter with 5/8-11" arbor
• 80-grit for balanced stock removal and finish
• Operates up to 13300 RPM
• Suitable for ferrous and non-ferrous metals, plastics and wood
• Package: Each, Box Quantity 10