Engine Cleaning Brush Kit Mr GasketSerious engine builders and backyard mechanics alike need these special length brushes to properly clean all the holes and passages found in most automotive engines. Available in a wide variety of diameters and lengths, each brush is made from pure stiff bristle nylon that won't soften or melt when used in conjunction with most engine cleaning solvents. To minimize bending, each handle is made from heavy gauge twisted steel wire, which also firmly