17 1/2'' IADC 537 TCI Tricone Rock Bit for Oilfield Drilling. High-Efficiency Design: Forged high carbon steel construction ensures high efficiency and wear resistance for drilling operations. Wide Application Range: Suitable for soft to medium hard formations including shale, sandstone, limestone, and gypsum. OEM/ODM Support: Customized services available for machine type, processing type, and specific drilling requirements. Prompt Delivery: Regular models kept in stock for prompt delivery; mass production depends on order quantity. Flexible Payment Terms: Accepts various payment methods including L/C, T/T, D/P, and PayPal for buyer convenience. Fast Logistics: Located near Beijing airport and Tianjin seaport, ensuring fast and economical inland transportation. Professional Manufacturer: Established in 2016 with 5 R&D engineers and 100-200 employees, specializing in drill bits. Global Export Experience: Exported to over 20 countries including USA, Australia, and European nations with 70-80% export rate.