- 
              Tricone roller drill bits IADC517 6 1/4″ (159mm)
- 
              TCI sealed rock button bits IADC517 6 1/2″ (165mm) for well drilling
- 
              TCI tricone bit IADC517 7 1/2″ (190mm)
- 
              Deep Well Tricone Bit IADC517 7 7/8 inches (200mm)
- 
              API Tricone Bit IADC517 8.5 inches (215.90mm)
- 
              API Tricone drilling bit IADC517 8 3/4 inches (222mm) in stock
- 
              Tricone Roller Bits IADC517 9.5 inches (241mm)
- 
              Rotary tricone Bits IADC517 9 7/8″ (250mm) for hard rock
- 
              Three cones rock bit IADC517 10 5/8″ (269mm)
- 
              Rotary rock bit IADC517 11 5/8″ (295mm)
- 
              Rotary tricone bit IADC517 12 1/4″ (311mm)
- 
              Three cones bit IADC517 13 5/8″ (346mm)
