
Our Tool Joints are premium quality manufactured from 4142/4145 steel. Prior to machining, it is heat treated to 311 Brinnel Hardness Range to eliminate distortion. Tool Joints are attached to pipe by means of a special thread and counter bore seal, with counter bore welding offered in Grade D only.
Upon customer request, Mill Certificates and Certificates of Quality are issued by Hacker Industries.
Hacker Drill Pipe is offered with Standard API screw on type tool joints and with standard or over-size outside diameters complete with Hard Facing. For details on material and manufacturing methods plesase refer to our Hacker Tool Joint Description.