Used ROCA in Hebei, China

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.

17 1/2" Rock bit

• Manufacturer: Hebei Solidkey petroleum machinery co;ltd

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...

42" HDD Hole Opener IADC637G Metal-face Sealed Bearing For Hard Rock Trenchless

• Manufacturer: ROCA

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

Reverse Circulation Rock Drilling PDC Bit

• Manufacturer: ROCA

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...

28" HDD Hole Opener IADC637G Metal-face Sealed Bearing For Hard Rock Trenchless

• Manufacturer: ROCA

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

Roller Cone Bits(NG3) for Rock Piling Core Barrel

• Manufacturer: Hebei Solidkey petroleum machinery co;ltd

Cone: 15MnNi4Mo | Arm: 15CrNiMo | Tooth: Tungsten Carbide Inserts | Tooth qty.&diameter: 49 PCS / 14mm | Tooth height: Total height: 23mm/21mm/19mm, inside height: 12mm/11mm/11mm, outside height: 11mm/10mm/8mm |...

Hard Rock Core Barrel Roller Cone Bits NG2(56/9)

• Manufacturer: Hebei Solidkey petroleum machinery co;ltd

Cone: 15MnNi4Mo | Arm: 15CrNiMo | Tooth: Tungsten Carbide Inserts | Tooth qty.&diameter: 56 PCS / 14mm | Tooth height: Total height: 20.3mm,   inside height: 11.3mm,   outside height: 9mm | Tungsten carbide enha...

28 Inches No Dig Metal Face Sealed Bearing Roller Cones Hole Opener for Hard Rock

• Manufacturer: ROCA

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

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

• Manufacturer: ROCA

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

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...

12 1/4"(311.1mm) Conical Inserts TCI Tricone IADC617 Drill Rock Bits

• Manufacturer: ROCA

Diameter: 12 1/4"(311.1mm) | 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): 90-50 | Wob(kn): 140...