New style brushes using a 7/32" shank crimped to the stem wire for added rigidity and strength. Designed for cleaning valve guides and other small holes. Carbon Steel is standard. Also available in nylon and stainless steel filaments on request.  Prop 65 Warning

Available in both nylon and carbon steel in 7 popular sizes including 1/4", 5/16", 3/8", 7/16", 1/2", 11/32, 13/32". The kit represents a savings over purchasing all the brushes separately.  Prop 65 Warning