A stonewashed finish refers to tumbling the blade in an abrasive material. This finish easily hides scratches, while also providing a less reflective nature than a brushed or satin finished blade. There is a wide variety of stonewashed finishes based upon the abrasive shape, tumbling motion, and the type of finish the blade has before it enters the tumbler. An “acid stonewashed” or “black stonewash” finish is a blade that has had an acid treatment that darkens the blade before it undergoes stonewashing. The acid oxidation enhances a blade’s rust resistance by placing a stable oxide barrier between the steel and the environment. A very positive benefit of stonewashed blades/handles is that they are low maintenance and preserve their original look over time; the stonewashed finish hides the scratches that can occur with use over time.