A useful set of 3 scratch brushes in steel wires, brass and fiber glass bristles for derusting, texturing, and soldering clean up. Ideal for miniature clay sculptures and crafts. By turning the black top cover, the respective bristles protrude or retract. Encaustic wax painting would find brush useful for texturing. Mold makers use in cleaning up before casting. Watch makers to clean up analogue watches or miniature craft works.