elbow-swivel fitting
1hand tool — any tool or implement designed for manual operation. * * * Introduction any of the implements used by craftsmen in manual operations, such as chopping, chiseling, sawing, filing, or forging. Complementary tools, often needed as auxiliaries to… …
2joint — joint, articulation, suture denote a place where two things are united or the mechanism by which they are united. Joint is the most inclusive of these terms and is freely usable in reference both to anatomical and mechanical structures. In… …
