Starrett 188 English Standard Wire Gage, Hardened, Satin Finish, Numbers 1-36, 0.3-0.004" Diameter Range
This gauge is popular for gaging iron wire, hot and cold rolled sheet steel, and in some cases, sheet iron by the english standard wire system also known as Birmingham or stubs. Gauge has convenient decimal equivalents of each number on the reverse side. Satin finish. Carefully tested after hardening.