Loading... Please wait...Wheel tip for general purpose use. Non-sparking and softer than steel. Will not scratch soft metals like gold, copper, brass. Features: Ideal for cleaning and surface-finishing items made from gold, bronze, copper or brass. Use a brass brush to create a soft, satin or matte finish. Very effective on flat surfaces and in hard-to-reach areas like slots. Brass wire is non-sparking and softer than steel.