Pipe Wrench Small 320×83 Medium 640×166 Large 1024×266 Download TIFF Original 2400×623 | (205.3 KB) Description Adjustable wrench for gripping and turning a pipe; has two serrated jaws that are adjusted to grip the pipe Keywords hand tool, implement, spanner, wrench Galleries Wrenches Source: Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)