CGW 39424 4-1/2" X 7/8" Type 29 60-Grit A3 Aluminum Oxide Flap Disc

CGW’s 4-1/2 inch by 7/8 inch Type 29 flap disc delivers aggressive material removal on a variety of substrates. The disc uses premium aluminum oxide grain bonded to a durable polyester backing, arranged in a 60-grit configuration to balance stock removal with a smoother finish. The A3 designation indicates the disc is suitable for ferrous and nonferrous metals, as well as plastics and wood, when paired with compatible power tools and proper RPM control. The 60-grit 60-A3 construction is designed for applications that require effective grinding and deburring with a relatively fine surface texture.

The disc is rated for up to 13,300 RPM, making it appropriate for high-speed air-powered or electric grinders that accept 4-1/2 inch wheels with a 7/8 inch arbor. This size and configuration (Type 29 flared, conical) partitions contact area to help expose more abrasive surface while maintaining control during angled grinding, which is typical for edge deburring, weld finishing, and general fabricating tasks. The packaging indicates a box quantity of 10 per order, with each disc intended for individual use on appropriate equipment.

When selecting this flap disc, verify tool compatibility with a 4-1/2 inch diameter and 7/8 inch arbor, and ensure the RPM rating aligns with your grinder’s output. For best results, use the disc within its intended material spectrum and follow standard grinding safety practices, including appropriate PPE and guard usage. Proper mounting and tool speed adherence are essential to maintain disc integrity and achieve a consistent finish.

Features:

• Premium Aluminum Oxide grain on a polyester backing
• Type 29 flap design for convenient material removal and finishing
• 4-1/2" diameter with 7/8" arbor size
• 60-grit for balanced stock removal and smooth finish
• Compatible with ferrous and non-ferrous metals, plastics, and wood
• Maximum RPM 13300 for high-speed applications
• Packaged as 10 discs per box