6.5-in (16.5-cm) TCI TRICONE BIT – Supplied by Right Turn Supply in partnership with Smith Bits, this bit is engineered for superior drilling performance in high-load applications. The IADC 637 cutter structure is built for durability and efficient rock penetration in hard and abrasive conditions. Featuring a 3.50-in API Reg pin connection, it ensures reliable performance and long service life.