Vintage steel brake-lathe or machine-fixture arm with a long round shaft and a square pivot block retained by a through bolt, washers and nut. The assembly is approximately 6 inches long in the ruler photographs. The pivot hardware, block, shaft shoulder and plain end are shown closely. Fit / compatibility: The original machine, pivoting tool, stop or linkage application is unknown. No maker or part number is visible. Compare shaft diameter and length, block size, bolt orientation and photographed dimensions to the required setup. Only the exact pictured item is included.