This fork nut wrench works for both 1-5/16 inch and 1-1/2 inch fork tube nuts as found on all vintage Triumph twin cylinder motorcycles (T120, T110, TR6, TR7, T140 etc) as well as triples (T150 Trident, T160) and BSA twins (A50, A650 etc) and most singles as well. This stainless steel wrench is 3/16 inch thick and has a tumbled finish. The corners of the wrench hex has been relieved to avoid damaging chrome plating, and the hex is offset to allow sufficient clearance for those model motorcycles with the fork lock that is cast into the top triple tree. Made in the USA.