The Proto B334241 extra thin tappet-style open-end wrench is engineered for use on jam nuts and in confined areas where standard wrenches won't fit. Its unique arc design increases surface contact by 400%, reducing fastener rounding and improving grip on both ends.
Finished in a professional satin chrome, this SAE wrench features a 15° open-side head angle and dual open-end openings measuring 1/2 in. and 9/16 in. At just 10 inches long and 0.17 lb., it delivers reach and control without adding bulk to your toolbox.