Pipe Wrenches, Vises and Clamps
An adjustable wrench with a toothed jaw for gripping pipe, frequently used by a plumber or pipe fitter, to loosen and tighten pipes with threaded connections
A vice is a tool with two parts that can be moved together by tightening a screw so that an object can be held firmly between them while it is being worked on, usually fastened to a bench
A clamp is a device designed to bind or constrict or to press two or more parts together so as to hold them firmly