In April 2014, A customer in Shandong province , produced 12”2 PDC drill bit by using FIDC 1613NTS, the bit was used for vertical drilling in Heng shan of Yulin,Shanxi province. This is a complicated geosphere and difficult to drill, drilling time is 100 hour, footage is 1040 meter, ROP is 10.4m/s, drill company gave good evaluation.