外钩外钩是用于从套管或油管内打捞各种绳类、提环、空心短圆柱体、短绳套等落物的工具、如钢丝绳、录井钢丝、电缆等。ExternalHookTheExternalHookisusedinsidecasingsortubingstocatchallkindsofropes,liftingbails,hollowshortcylinders,shortropeslingssuchaswirelines,loggingsteelpieces,cables,etc.外钩技术参数SpecificationofExternalhook型号Type***大外径Max.O.D.(mm)接头螺纹Connection（in）下入套管/油管Casing/TubingSize（in）WG73732-3/8油管接箍（TubingCoupling）3-1/2油管（Tubing）WG9595NC264-1/2油管（Tubing）WG114114NC315-1/2套管（Casing）WG136136NC316-5/8套管（Casing）WG150150NC387套管（Casing）WG176176NC388-5/8套管（Casing）WG190190NC509-5/8套管（Casing）)