Lifting sub is the special tools for lifting of the drill tools in petroleum, natural gas industry and geologic exploration. There\'re two types for drill tool lifting sub in structure: type A or B. Type A lift sub is with 18 degree shoulder, and type B is with 90 degree ...
Side Entry subs are manufactured from AISI 4145 alloy steel. The side entry sub is manufactured with box by pin connections to match the drill pipe by a welded 2\" 1502 union side outlet. When ordering, please specify: Overall length Sub OD Sub Bore Connection size Product Name ...