Adjustable Angle Wrench is completely made by Chrome Vanadium Steel, heat treatment, and with forging "TORMAX" Trade Mark. The adjustable wrench is specified on Right Left-Hand-Thread. Sizes are containing 4", 6", 8", 10", 12", 15", 18", and 24". It meets J.I.S, SABS, U.S.A. Federal Specification GGG-W-631 Ansi, Din 3117 (G.S. Approved No. 77 94)