1、AISI 4145H -Heat treated steel dedicated for Petruleum drilling stools 

2、Compact surface coating

Super toughness and wear-resistance

Good erosion-resistance

3、Hard metal nozzle with carbide liner，can effectively protect the bit body  and  nozzles from internal erosion

4、The outside is a steel 

inside is a box made of plastic 

which can protect the PDC bit well 

avoid damaging the PDC bit during transportation 

Please contact：

TEL：8618232186601  ；8617340754111

whatsapp:8618232186601

                 8618031733007

E-mail：drillbits1@zkdrilling.com

             great03@pdcbit.net