In August 2020, Assembly and test of two newly purchased five-axis machining centers in CCTEG Xi’an Research Institute have been basically completed. The two machining centers are Madzak Variaxis i800, which can realize five-axis machining of mechanical parts, crown machining of complex curved surface of drill bit, machining of complex parts of drilling rig, etc. The machining level and drill bit machining capacity of drilling equipment manufacturing center are greatly improved.