Used construction in Hebei, China

8 1/2 Inches PDC Drill Bit M137 for Very Hard Rocks Drilling

• Manufacturer: Hebei Solidkey petroleum machinery co;ltd

Medium-hard to hard formations with lowcompressive strength , such as hard shale, limestone, sandstone, dolomite, hard gypsum,marble, etc.

8 1/2"(215.9mm) TCI Tricone Bit IADC637G for Hard Rock Drilling

Diameter: 8 1/2"(215.9mm) | Bearing type: Elastomer sealed bearing | Tooth type: TCI(Tungsten Carbide Inserts) | Circulation type: Mud fluid | Thread connection: 4 1/2 reg pin | Rpm(r/min): 80-40 | Wob(kn): 108-...

9 7/8"(250.8mm) TCI Tricone Bit IADC637 for Hard Rock Drilling

• Manufacturer: ROCA

Diameter: 9 7/8"(250.8mm) | Bearing type: Elastomer sealed bearing | Tooth type: TCI(Tungsten Carbide Inserts) | Circulation type: Mud fluid | Thread connection: 6 5/8 reg pin | Rpm(r/min): 80-40 | Wob(kn): 125-...

11 5/8"(295.3mm) IADC537 Medium Rock Drilling TCI Tricone Bit Popular in Middle-Asian Oil Field

• Manufacturer: ROCA

Diameter: 11 5/8"(295.3mm) | Bearing type: Elastomer sealed bearing | Tooth type: TCI(Tungsten Carbide Inserts) | Circulation type: Mud fluid | Thread connection: 6 5/8 reg pin | Rpm(r/min): 120-50 | Wob(kn): 13...

251mm Roller Cone Bit Replaceable Block For Hard Rocks Drilling HDD Rock Reamers

• Manufacturer: Hebei Solidkey petroleum machinery co;ltd

Hard formations for high compressive strength, such as sandstone, hard shale, dolomite, hard gypsum, chert, granite, etc.

Reverse Circulation Rock Drilling PDC Bit

12 1/4"(311.1mm) iadc637g: 17 1/2" (444.5mm) IADC537G | 8 1/2"(215.9mm) pdc bit: 12 1/4"(311.1mm) PDC Bit | 24" hole opener: 28" Hole Opener | Tricone bit thirds: Replaceable Roller Cone Bits | Pdc bits: Hole Op...