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4''--26" Tricone Bit for Oil, Gas, Water Well Drilling. 30 Years Experience: Established in 1990 with extensive expertise in drill bit manufacturing. OEM & ODM Services: Accept all OEM orders and provide full customization from samples or designs. API & ISO Certified: Compliant with API Spec 7-1, ISO9001, ISO14001, and OHSAS18001 standards. Factory Direct Sales: 100% direct sales from manufacturer ensuring favorable pricing and quality. Wide Size Range: Available in sizes from 2 inches to 26 inches for various drilling needs. Premium Materials: Constructed from Cobalt Steel Alloys and 4145h for durability. Customizable Colors: Available in Gold, Blue, Black, or fully customized color options.