PEERCHEER offers HX thread flush-coupled casing for use with HQ core system. HX casing is intended for single use or situations where the HX casing is left in the hole. HX casing is made from high quality alloy steel tubes. HX casing utilizes the HX straight thread (5 threads per inch). HX casing is universal in design and can be used in any DCDMA H size hole drilling application where threaded casing is required to be left in the ground.