Our 6-11/16" shaft is considered to be a part of the large-diameter class of shafting, made from precision machined steel for industrial duty applications. 6-11/16" diameter shafts are typically supplied in C1018 steel, 1045 stress-proof steel, or 303-stainless steel; with additional material options available. Our capabilities for 6-11/16" diameter shafts include turn gound and polished (TGP) and keying. We also provide 6-11/16" shafts with specific machining done and at required lengths! For additional information or to get a quote on a 6-11/16" diameter shaft, contact our customer service team, and we will be happy to assist you!