6″ x 6mm x 22mm Black Fiber Grinding Disc

6″ x 6mm Black Fiber Grinding Disc, Metz.

The colors of fiber grinding discs—black, green, and red—typically indicate the type of abrasive material and their intended applications.

Black grinding discs are often made of zirconia alumina or silicon carbide, suitable for grinding and deburring metals like steel, stainless steel, and cast iron. Silicon carbide black discs may also be used on non-metallic materials like stone, ceramics, or glass. Black discs are suited for heavy-duty tasks.

These colors and their meanings can vary slightly by manufacturer, so checking the product specifications for the intended use is always a good practice.