
- Available Sizes: Standard sizes from 3 1/2″, 3 7/8″, 4 5/8″, 4 3/4″, 5 1/4″, 5 3/4″, 6″, 6 1/2″, 8 1/2″, 9 7/8″, 12 1/4″, 17 1/2″, 20″, up to 26″ tricone bits.
- API Connections: Industry-standard pin connections including 2 3/8″, 2 7/8″, 3 1/2″, 4 1/2″, 6 5/8″, and 7 5/8″ API Regular.
- IADC Classifications: Covering a wide choice of IADC codes (117, 217, 417, 437, 517, 537, 617, 637) for steel tooth and TCI bits.
- Bearing Technology: Equipped with advanced Composite Rubber Seal or premium Metal Face Seal bearing structures for maximum downhole lifespan.
- Drilling Fields: Engineered for demanding Oil & Gas exploration, Horizontal Directional Drilling (HDD), deep water well sourcing, and open-pit mining.
How to Choose Between Composite Rubber Seal and Metal Face Seal Bearing?
Selecting the right bearing structure is critical for maximizing your drilling efficiency and preventing premature bit failure.
- Composite Rubber Seal Bearing: Best suited for standard water well drilling, shallow oil exploration, and Horizontal Directional Drilling (HDD) applications. It offers excellent cost-effectiveness and reliable performance in low-to-medium RPM conditions.
- Metal Face Seal Bearing: Engineered for high-speed, high-temperature, and ultra-deep drilling environments (such as deep oil & gas wells or hard-rock mining). The metal-to-metal sealing technology provides superior wear resistance, ensuring longer downhole runtime under high weight-on-bit (WOB).
As a leading B2B supplier of premium rock drilling bits, we offer a comprehensive range of genuine Kingdream tricone bits and TZ (Lilin) roller cone bits. All products strictly conform to API Spec 7-1 standards. Whether you are operating in deep oil and gas wells, challenging HDD (Horizontal Directional Drilling) projects, high-capacity deep water well drilling, or heavy-duty mining and quarrying environments, our dual-seal and metal-face seal bearing tricone bits ensure maximum durability and cost-per-meter efficiency.



Why Source Kingdream & TZ (Lilin) Tricone Bits From Us?
- 100% Genuine Guaranteed: We directly collaborate with top factory channels to ensure every Kingdream and TZ (Lilin) bit is 100% original and traceable.
- Flexible Customization & Engineering: Our team can custom-match the perfect IADC code, bearing structure (dual-seal or metal face), and shirttail protection based on your specific geological formation.
- Fast Global Sourcing & Shipping: Backed by a robust supply chain, we maintain an extensive inventory of standard sizes (like 8 1/2″ and 12 1/4″) to ensure rapid deployment to your job site.
- Strict Quality Control: Every piece strictly conforms to the API Spec 7-1 manufacturing standard, ensuring maximum downhole hours and lowering your total cost per meter.
Get an Instant Factory-Direct Quote Today
Have a specific IADC or size requirement for your drilling project? Drop us a line below. Our technical sales engineers will send you a detailed commercial invoice and specification sheet within 12 hours.