CGW 39415 4-1/2" X 5/8"-11 Type 27 80-Grit A3 Aluminum Oxide Flap Disc

CGW 39415 is a flap disc designed for versatile metal and material finishing tasks. This 4-1/2 inch diameter, 5/8-11 threaded arbor Type 27 flap disc uses 80-grit aluminum oxide on a polyester backing to deliver material removal and surface finishing in a single step. The Type 27 profile provides a flatter grinding angle, making it suitable for deburring, edge blending, and contour work on contoured surfaces and larger radii. The aluminum oxide grain is a common choice for ferrous and nonferrous metals, as well as plastics and wood, offering a balance of durability and cut-rate for mixed-material projects.

The construction combines premium abrasive grains with a sturdy backing to withstand the rigors of metalworking and fabrication environments. The 80-grit size positions this disc for intermediate finishing tasks—faster material removal than finer grits, while still yielding a smoother final surface compared to coarse profiles. The disc is rated for up to 13,300 RPM, so operators must match speed to the tool and application to maintain control and safety. Package options indicate the disc is sold as individual units, with bulk quantities commonly available in cases.

Ideal use cases include deburring welds, smoothing rough edges, and contour work on both ferrous and nonferrous metals, with potential compatibility extended to certain plastics and woods depending on the application. When selecting accessories, ensure a compatible 4-1/2 inch flap disc with 5/8-11 arbor and Type 27 profile. Regular inspection for wear and proper mounting is advised to maintain performance and safe operation.

Features:

• Premium Aluminum Oxide grain on a polyester backing
• Type 27 profile for various surface contours
• 4-1/2" diameter with 5/8-11" arbor
• 80-grit for balanced material removal and finish
• Suitable for ferrous and non-ferrous metals, plastics, and wood
• Rated up to 13,300 RPM