Weiler Acid/Flux Brush is used for a wide variety of cleaning and coating applications. Weiler Acid/Flux brush of 3/4 trim length features gray horsehair bristles and cylindrical aluminum handle that provides better grip. 1/2 Wide brush is 5 3/4 long and is ideal for cleaning/coating purposes. • Width: 1/2-inch. • Trim length: 3/4-inch. • Bristle material: Gray horsehair. • Overall length: 5 3/4-inch. • Handle type: Cylindrical. • For applying flux to a copper tube prior to soldering. • For a wide variety of cleaning and coating applications. • With Tin ferrule. • Sold as 144/Carton.