3-5/8 Inch IADC 537/617 Tricone Roller Bit Oil Well Drilling-Tools Petroleum Well Drill Bit

3-5/8 Inch IADC 537/617 Tricone Roller Bit Oil Well Drilling-Tools Petroleum Well Drill Bit. 30 Years Manufacturing Experience: Established in 1990 with extensive expertise in drill bit production. API 7-1 & ISO9001 Certified: Strictly complies with API Spec7-1 and ISO9001 quality standards. Full OEM/ODM Service: Accepts all OEM orders and offers customization from samples or designs. Premium Cobalt Steel Material: Made from high-quality Cobalt Steel Alloys 4145h for durability. Advanced Production Equipment: Equipped with 5-axis machining centers and NC sintering furnaces. Global Export Capability: Products exported to North America, Middle East, and Russia. 100% Factory Direct Sales: Direct factory pricing ensures favorable costs and quality guarantee.