Wire Brush Set 1/4" Hex Shank

*Set includes: 36pc wire brush: stainless steel, brass and nylon (12 pieces of each) - 4" length (2" brush, 2" shank); 1/4" hex shank*Brush sizes: 8-9-10-11-12-13-14-15-16-17-18-19 mm (5/16, 11/32, 13/32, 7/16, 15/32, 1/2, 9/16, 19/32, 5/8,11/16, 23/32, 3/4 inch)*Extendable quick-release extension bar (6") included to reach difficult spots*1/4" hex shank allows these brushes to be mounted on a power drill or die grinder