Pipe wrench Pipe wrench A pipe wrench is any of several types of wrench that are designed to turn threaded pipe and pipe fittings for assembly (tightening) or disassembly (loosening). Especially in North America, the Stillson wrench or Stillson-pattern wrench is the usual form of pipe wrench. (The name comes from the original patent holder, who licensed the pattern to multiple manufacturers; the patent expired decades ago.) Another type of wrench often used on pipes, the plumber wrench, is also often called a pipe wrench, depending on locale. The Stillson type is an adjustable wrench/spanner with hardened serrated teeth on its jaws;
Tool library 4,500 tools free of charge to both individuals and non-profit organizations. This tool library was among many in what could maybe be considered the first generation of tool libraries - including The Phinney Tool Library in 1978 and The Berkeley Tool Library in 1979 - most of which were founded in the late 70s or early 80s. Many of these libraries were started with community block grants. A variation of the tool lending library model exists in Atlanta, Georgia. At the Atlanta Community ToolBank, the tools are reserved for use only by nonprofits and other community-based organizations who are performing