5 17 1/2" IADC 537 TCI Tricone Bit for Water Wells

5" IADC 637 TCI Tricone Bit for Water Wells

8-1/2 4-1/2" IADC 637 Tricone Roller Bit for Water Wells

8-1/2" IADC 617 TCI Tricone Bit For Water Wells

8-1/2'' IADC617 Tricone Bit with Tungsten Carbide Insert

8-1/2" IADC 617 Tricone Roller Bit for Water Wells

17 1/2" IADC527 RC Tricone Bit (Reverse Cirulation with Center Opening)

3 7/8" IADC 117 Tricone Bits with Steel Milled Teeth

4 1/8" IADC 117 Tricone Bits with Steel Milled Teeth

4-1/2" IADC 637 Tricone Roller Bit for Water Wells

5" IADC 537 Tricone Roller Bit for Water Wells

17 1/2" IADC 437 Tricone Roller Bit for Water Wells