Tuff Boy Chiseled Edge Black Horsehair Bristle Acid Brush With A 5-3/8 Inch Tin Ferrule; Easy And Clean Application When Spreading Acid, Flux, Glue, Paint Or Oil; Made In USA This Acid Brush is used for even spreading of tough chemicals, flux, solvents and many other applications. This makes it an indispensable tool for plumbing, welding and pipe fitting. Its densely filled semi stiff horsehair bristles is perfect for quick cleaning of pipes from flux residue or dust prior and after soldering; Great brush for small areas! Double crimped 5-3/8 inch long tin ferrule is seamless with no sharp edges. Ferrules hold  inch horsehair bristles in place with a steel staple. The 6 inch total length enables you to easily get into tight spaces. Guaranteed to spread lubricants and coatings evenly; Use this glue brush to apply adhesives such as wood glue, to apply oil for greasing machines or for rough spot painting. Economical brush for when one time usage is necessary; Made In USA for best quality; Reuse the brushes by cleaning the bristles with water or solvents.