Mack brushes series 5840 White Bristle Single Cutter Brush. Buy these brushes made of the finest quality hair, with clear lacquer finished handles. They have nickel ferrules and they are hand chiseled. These brushes are made from Pure White Hog Bristle. These brushes are great for any sign painter, or hand painter for outdoor work. The brushes are available in sizes 1" - 3", they have graduated hair lengths and most brushes are 5/16" of an inch, except for the 3" version that has a thickness of 3/8".