These disposable acid brushes are great for various interior and exterior home and industrial tasks. Durable 3/8″ chisel edge bristle brushes with 6″ long metal handles are for single or multiple uses. Use to apply glue, oil, acid, flux, pipe dope, solder, and touch-up primer and paint in small areas. Our touch-up brushes are also ideal for cleaning, from metal debris to dusting off a keyboard.