API 11 5/8 Inch M323 PDC Diamond Bit/PDC Cutter Bit/PDC Blades Bit for Oil Drilling

API 7 7/8Inch S233 PDC bit/ diamond drill bit/ PDC rock bit

API 5 1/2 Inch M122 PDC drill bit / PDC coring Drill Bit /PDC bit for gas well or oil well

API 15 1/2 Inch IADC 637 TCI drill bit/water well drilling rotary rock bits/tungsten carbide insert tricone roller bit

API 13 3/4 Inch IADC435 API TCI Drill Bit/Insert Tricone Rotary Bit/water well drilling equipment /drilling for groundwa

API 10 5/8 Inch IADC517 TCI tricone bit drilling bit three cone tricone bit for water well

TCI Tricone Bit Rock Roller Bit Tungsten Carbide Insert Bit

API 5 7/8 Inch IADC 417 Tricone Roller Bits/button tricone bits

API 5 7/8 Inch IADC 417 Tricone Roller Bits/button tricone bits

API 12 1/4 M321 PDC Diamond Bit/PDC Cutter Bit/PDC Blades Bit for Oil Drilling

API 12 1/4 Kingdream GA115L New Steel Tooth Bit/Milled Tooth Bit

API 9 7/8 HJ437G New TCI Tricone Bits/Tungsen Carbide Insert Bit/Rock Bits/Tricone Rotary Drill Bit for well drilling

API New 3 WingsStep Drag Bits/Blades Bits for Well Drilling Factory/Seller

API New 3 Wings Drag Bits/Blades Bits

API Hole Opener/Piling Bits/Tricone Cutters/Reamer Drilling

API S323 PDC Diamond Bit/PDC Cutter Bit/PDC Blades Bit

API 8 1/2 Kingdream HA117Y New Steel Tooth Bit/Milled Tooth Bit

API 8 1/2Kingdream HJ437G New TCI Tricone Bits/Rock Bits/Drilling Bits