Stanley Proto J4924FL 12 Point Flare Nut Crowfoot Wrench 3/8" Drive 3/4",Stanley Proto,J4924FL" /> Full Polish finish provides corrosion resistance and easy to clean surfaces. Features Proto Anti-slip desgin Locking hole helps hold crowfoot in place during use. Tight tolerance for snug fit on fasteners. Use with Proto locking extensions to help prevent tool loss in awkward locations.