3 7/8 inch IADC537 TCI Tricone Bit
4 1/2 inch IADC537 TCI Tricone Bit
4 3/4 Inch IADC637 TCI Tricone Bit
4 5/8 Inch IADC637 TCI Tricone Bit
IADC637
4 3/4 Inch IADC537 TCI Tricone Bit
5 1/4 inch IADC537 TCI Tricone Bit
5 5/8 Inch IADC537 TCI Tricone Bit
IADC537
6 1/8 Inch IADC627 TCI Tricone Bit
IADC627
6 1/4 Inch IADC537 TCI Tricone Bit
6 inch IADC537 TCI Tricone Bit
IADC537
6 Inch IADC637 TCI Tricone Bit
IADC637
6 1/2 Inch IADC537 TCI Tricone Bit
IADC537