This video demonstrates the setup, operation, and key moments during typical use of the API Special Tungsten Carbide Insert 9-7/8" (250mm) Rock Mining Tricone Drill Bit. You'll see how this TCI bit performs in middle hard rock formations, learn about proper bearing selection, and understand how to interpret IADC codes for optimal drilling parameters. We'll walk through the critical features that extend bit life and improve performance in mining applications.