Chain Wrench Small 72×320 Medium 143×640 Large 230×1024 Download TIFF Original 538×2400 | (282.1 KB) Description A tool for gripping and turning or twisting the head of a bolt, a nut, a pipe, or the like, commonly consisting of a bar of metal with fixed or adjustable jaws. Keywords chain, hand tool, isntrument, spanner, wrench Galleries Wrenches Source: Government Printing Office Official Gazette (Washingon, DC: Government Printing Office, 1912)
