Drilling tools are used for production work associated directly with the drilling process. It includes rock destruction drilling tools - cutters, drill bits, drill bits, etc., which are designed for mechanical (contact) destruction of rocks on the bottom to form the hole, borehole or drilling-out and coring, as well as extenders, stabilizers, etc. for the destruction of the walls of the well to give it the desired diameter and cross section. In addition, rock destruction drilling tools used to conduct special operations in wells, for example, drilling out cement plug, metal shoes, scrap pipes etc. To a technological drilling tools is the tool designed for mechanical and hydraulic rock cutting tool of communication with ground drilling equipment, tripping operations, replacement of rock cutting tool and ensure that it works on the face.