Wrench measures 3/8” on one end and 7/16“ at opposite end. Both ends are designed with an angled offset (15°) for work in confined areas. Polished to a high gloss finish and made of chrome vanadium steel. Tool is 6.25” (158.8mm) long. The wrench can be used on 7/16 “F” fittings and can be used to tighten the nuts and bolts on traps and taps. Can also be used on CATV hardware.