This Snap-on crowfoot wrench is the perfect addition to your toolbox. With a 3/8" drive and a 12-point system of measurement, it is designed for use with SAE hardware. It is the ideal tool to have for those hard-to-reach places, as it features a deep flare nut and a 13/16" size. The wrench is a single item, manufactured by Snap-on, with the part number AN850813.