Features and Benefits: * Used to open and close petcocks on radiators and other applications * Includes long and short wrenches to fit many applications * Can be used with a 1/4" drive ratchet or 3/4" open or boxed end wrenches * Knurled end provides extra grip when used with fingers * Made of 3/4" hex steel with black oxide finish Works on most import and domestic vehicles. Set comes in a handy vinyl holder for storage.