... Socket, 6 PT Material: High strength Cr-Mo alloy Steel, Cr-V Steel or 40CR Specifications: 17mm,19mm,21mm,22mm,24mm,27mm,30mm ... ,90mm,95mm,100mm,105mm,110mm,115mm,120mm,125mm Length: 88mm or 90mm Huayi Impact SocketsSpecial heat-treated for the best combination ... also can make new moulds for your any special size or drawing request.