Anyone who works on dive equipment knows the uncommon sizes, tight spacing and thinned surfaces of wrench flats on equipment optimized for SCUBA can present some annoying challenges. Manufactured in Japan by Top Kogyo and supplied in the US by Tek-Tite; this is not just an ordinary adjustable "monkey" wrench. Unlike a monkey wrench where the jaws are intentionally non-parallel, once you set the jaws on this tool it works just like a spanner or box wrench. This tool has a spring-loaded worm drive which means no backlash and no need to constantly reset (loosen/tighten) the perfectly parallel jaws each time you turn it. Thin, pointed, and 20° angle deep-reach jaws allow access into difficult spaces. Although there are several versions, this compact angled-jaw model excels at back-to-back wrench applications on regulators, valves and hoses. Perfect for use with 1st stage transmitters and mini-spgs, the thin 19-mm jam nut on manifold crossbars, as well as the very tight spaces frequently encountered when rebuilding second stages.

This hand-tool is designed for precision work, not circumstances requiring 'brute force', so make sure the jaws are fully engaged and please don't use it with a hammer or extender otherwise the tool may be damaged.