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