6 1/4" rerun retip mill tooth (steel tooth) tricone drill bit. Evident by the pictures, it includes shirt tail protection and gauge protection. It has 3 1/2" API Reg pin. Bit has visible wear and has been retipped, but is still in good working condition. IADC 137. Feel free to ask any questions. We offer new and rerun bits in sizes from 3" to 36". Visit our website to view other products. Bit Brokers International