CGW 30144 4-1/2" X 5/8"-11 Type 27 60-Grit Z3 Zirconia Flap Disc

The CGW 30144 is a 4-1/2" diameter, 5/8-11 arbor Type 27 zirconia flap disc designed for aggressive material removal on steel. The wheel combines premium zirconia-alumina grain with a durable poly/cotton backing to balance stock removal with a smoother finish. Zirconia concentration is chosen to optimize high-rate material removal while maintaining a workable edge profile under heavy-duty use, and the active grinding aid helps maintain a cooler cut under light pressure.

Constructed to withstand demanding metalworking tasks, this flap disc is intended for applications requiring rapid stock removal with a reasonable surface finish. The 60-grit sizing provides a balance between aggressive grinding and profile refinement, making it suitable for tasks such as deburring, edge knocking, and prep work prior to finishing. The Type 27 profile is oriented for flat or contoured surfaces, enabling effective contact with the workpiece during rotation at up to 13,300 RPM, as specified for this disc. Packaging includes a box of 10 (each) discs for convenient replenishment in busy shop environments.

Compatibility notes: it uses a 5/8-11" threaded arbor and is sized for 4-1/2" wheels, aligning with common angle grinder configurations. For best results, match the disc’s grit and backing to the material and desired finish, and monitor disc wear to determine replacement timing. This product reflects CGW’s emphasis on high stock removal capabilities in steel applications while maintaining practical operating temperatures through an active grinding aid.

Features:

• Premium Zirconia Alumina grain on poly/cotton backing for durability and finish
• High stock removal with zirconia concentration
• Fastest stock removal in the marketplace for steel applications
• Recommended for aggressive use and heavy-duty applications
• Active grinding aid provides cool cutting with light pressure
• 4-1/2" diameter, 5/8-11" arbor, Type 27, 60-grit