BRUSHES ARE SOLD INDIVIDUALLY International Harvester Brushes Available in 1/2" and 3/4" diameter. Ideal for cleaning of injector seats. Stainless steel filaments will not cause contamination Crankshaft Oil Hole Brushes CSN Set of 1 each 6-12 Nylon 5/16" and 7/32 x 2 x 10 CSS Same set in stainless steel wire. Block O-Ring grooves Cleaner brush 5 1/2" diameter brush of extra heavy .079 nylon filaments for fast and efficient cleaning of "O"-Ring grooves. Comes with small stainless steel hand tool for removing old "O"-Ring and scraping groove when replacing wet sleeves. (John Deere) Spoke Brush 3" diameter crimped prostran. Ideal for cleaning between spokes. Will not scratch. *If you are looking for a size that is not listed for sale on our cart, please send us an email and we will prepare a quote for you.*