Bore Brush Set Handle Style Hex Bristle Material Brass Nylon Stainless Steel Handle Material Stainless Steel Brush Diameter 0.31 in 0.38 in 0.5 in 0.56 in 0.63 in 0.75 in 0.88 in Brush Length 3 in Handle Length 1 3/4 in Bristle Color Silver Chemical Resistant No Acid Resistant No Application AG/Industrial Automotive MRO Industries Brush Width 3/4 in 5/8 in 9/16 in 1/2 in 7/8 in 3/8 in 5/16 in Color Coding System No FDA Compliant No Features 36 Piece Brush Set