NMDC(Nong magnetic Drill Collar)are made from non- magnitec steel bars with low strength by combining a proper chemical analysis and rotary hammer forging process with low magnetic premeability and excellent machinability. It will not interfere with the specialized directional equipment but rather will enhance the performance of the drilling operation.

the non- magnetic drill collars function as a housing for the MWD tools, while at the same time provide the weight for drill string. Our products are suitable for all types of drilling including straight and directional applications.

Each drill collar is fully inspected by our internal inspecation department, all data obtained are recorded on the inspection certificate furnished with each drill collar, API monogram, serial number,OD. ID, type and size of connections are stamped on the recessed mill flate.