Product Description Color-coded handles for easy identification - blue for stainless steel use. Typical applications include cleaning rust, scale and dirt, light deburring, edge blending, roughening for adhesion, finishing for appearance, finish preparation prior to plating or painting. Better performance level. From the Manufacturer Typical application for Norton wire brushes includes: cleaning rust, scale and dirt. Light deburring, edge blending, roughening for adhesion and finishing for appearance and preparation prior to plating or painting.