1,PDC bit,PDC drilling bit 2,Certified by API and ISO9001 3,wide size code 4,Best quality and price 5,Delivery on time PDC bit for example character:JZM1942/M122 Deep blade and short parabolic configuration,ensure optimal bottom hole flow pattern and anti-baling.Balanced flow hydraulics make the bit have good direction nature ,smaller radials are shaken.Suitable for extremely soft to medial soft ...