The CGW 39402 is a 4-1/2 inch by 7/8 inch Type 27 flap disc engineered for versatility in metal, plastic, and wood finishing tasks. By combining premium aluminum oxide grain with a polyester backing, this disc provides a balanced approach to material removal and surface finishing on ferrous and nonferrous metals alike, as well as compatible non-metal substrates. The Type 27 configuration is designed to optimize grinding efficiency and material contact on angled surfaces, making it suitable for shaping welds, deburring edges, and smoothing irregular contours.
Key construction features include aluminum oxide abrasive grains bonded to a durable polyester backing, which supports consistent performance under typical workshop grinding conditions. The disc is rated for up to 13,300 RPM and uses a 7/8 inch arbor/shank, aligning with common power tools and grinders used in facility maintenance settings. Each package contains ten discs, providing ample supply for ongoing projects without frequent repurchase. The combination of grit size (40) and material composition is aimed at material removal with a relatively coarser finish, useful for initial leveling and rough shaping prior to finer abrasion steps.
When selecting this flap disc, consider the material being processed and the desired finish. The 40-grit A3 aluminum oxide formulation is appropriate for ferrous and nonferrous metals, certain plastics, and wood, though actual results depend on the workpiece and tool setup. Ensure compatible tooling and safe operation with proper guards, PPE, and adherence to equipment manufacturer recommendations. This product is sold in box quantities of 10 per package, with an overall diameter of 4.5 inches and an arbor size of 7/8 inch to fit compatible angle grinders and maintenance equipment.
Features:
- Premium Aluminum Oxide grain on a polyester backing
- Type 27 design for contour grinding
- 4-1/2 inch diameter with 7/8 inch arbor
- 40 grit for balanced material removal and finish
- Suitable for ferrous and non-ferrous metals, plastics, and wood
- Maximum RPM 13300 for compatible tools
- Package size: Each (box quantity 10)
- Grain:
- Aluminum Oxide
- Dia:
- 4.5
- Arbor/Shank Size:
- 7/8
- Type:
- 27
- Grit:
- 40
- RPM:
- 13300
- Package Size:
- Each
- Box Quantity:
- 10
