Premium Tungsten Carbide Tricone Drill Bit. Wide Size Range: Sizes range from 3 7/8 inches to 26 inches covering almost all IADC codes. Multiple Formation Types: Available for soft, medium, hard, and abrasive rock formations with specific IADC codes. Customized Color: Color is customizable to meet specific customer requirements. Fast Delivery: Usually 25 days for production, or 2-3 days if stock is available. OEM and ODM Service: Full support for custom product requests and manufacturing services. Strict Quality Control: Experienced QC team performs strict inspection and testing on every order. Free Replacement Warranty: Free replacement provided if failure is confirmed caused by product quality. ****** Trade Assurance: Gold supplier with over 10 years experience ensuring quality and on-time shipment.