Nylon Bristles, Twisted Steel Handles, 9 Assorted Sizes, Set of 12
It's important to have a clean block, especially in the critical, hard-to-reach areas of the oiling system. Each of the brushes in these Moroso engine cleaning brush sets is designed for a specific purpose. They can be used on crankshaft oil holes, cylinder heads, etc. Their bristles are made of nylon, which cleans as well as wire but does not scratch.