3/8" width disposable acid brush with horse hair bristle and a rolled tin handle is ideal for applying acid flux, glue, lubrication, and other coatings or using for small-area cleaning and the removal of debris. These disposable acid brushes are very popular for one-time use. The horse hair fill material is crimped-set at one end within a rolled tin handle. These throw-away acid brushes may lose fibers under repeated use. Item sold in packages of 1 (144-units/package) National Stock Number (NSN): 7920-00-541-2417.