The standard of the industry park tool shop cone wrenches are unmatched in quality and performance the special y head design puts more material where it39s needed for strength and durability precision sizing and a military grade industrial phosphate finish ensure an accurate fit and consistent quality thin enough to use on the narrowest of adjusting cones the scw shop cone wrenches have a long vinyl dipped handle for leverage and comfortable use sizes 13mm to 20mm scw 13 through scw 2