8 1/2 inch IADC 627 tci tr

8 1/2" IADC 627 tci tricone bit...

8 1/2 inch IADC 517 tci tr

8 1/2" IADC 517 tci tricone bit...

7 1/2 IADC 537 tci tricon

7 1/2" IADC 537 tci tricone bit...

6 inch IADC 637 tricone bi

6" IADC 637 tricone bit...

6 inch IADC 537 tci tricon

6" IADC 537 tci tricone bit...

6 inch IADC 517 tci tricon

6" IADC 517 tci tricone bit...

4 1/2 inch IADC 537 tci tr

4 1/2" IADC 537 tci tricone bit...

17 1/2 inch IADC 115 Steel

17 1/2" IADC 115 Steel Tooth tricone bit...

12 1/4 inch IADC 127 Steel

12 1/4" IADC 127 Steel Tooth tricone bit...

Water well 244.5mm steel

Water well 9 5/8" 244.5mm steel milled tooth rock roller tri...

10 5/8 inch well steel too

10 5/8 inch sealed bearing oil well hard rock steel tooth d...

12 1/4 inch steel tooth t

12 1/4 inch steel tooth tricone drill bit rock bit of Using...