Gold Member Since 2014
Audited Supplier
Hejian Hengji Bit Manufacture Co., Ltd.

8 1/2′′ Tricone Bit, Rock 8.5inch Bit, Tricone Drill Bit manufacturer / supplier in China, offering Oil Rock Three Cone Drill Bit 8 1/2 IADC 737, TCI 12 1/4 Oilfiled Tricone Bit, Roller Cone Bit, 12 1/4 Inch Oilfield Tricone Drill Bits IADC 537 and so on.

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Supplier Homepage Product Drill Bit Oil Rock Three Cone Drill Bit 8 1/2 IADC 737

Oil Rock Three Cone Drill Bit 8 1/2 IADC 737

FOB Price: US $680 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $680/ Piece
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Production Capacity: 500
Transport Package: Wooden Case
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: IADC CODE
  • Usage: Well Drilling
  • Model Number: Steel Tooth Bit, TCI Bit
  • Suitable Formation: Soft, Medium Soft, Hard, Medium Hard, Very Hard
  • Trademark: HJ
  • Origin: China
  • Material: Alloy Steel, Tungsten Carbide
  • Certification: ISO
  • Bearing Type: Sealed Bearing and Non-Sealed Bearing
  • Color: Blue or Red
  • Specification: according requirement
  • HS Code: 8207191
Product Description
oil rock drill bit 8 1/2 IADC737

Available sizes: From 2 7/8 to 26"

Advantage: Most favourable price and high quality

Bearing type: Sealed bearing and non-sealed bearing
Metal sealed journal bearing
Rubber sealed journal bearing
Cutting structure: The back cone and the teeth all surface is are hardfaced strengthening, improved steel tooth shape and welding materials, showing teeth higher
Application formation: Soft with low compressive strength and high drillability, such as shale, clay, salt bed and etc

All our activities are accredited to ISO 9001: 2008 and API, both in products and services, at the same time, mature production technology ensuring the quality satisfy international request.
Rock formationBit typeBit sizeDrilling weightRotary speed
mminchkN/mmr/min
Very softSoft Marl, Clays, Sands, Salts etc.1187.3~346.17 3/8~13 5/8441~735120~50
softClays, Soft Shale, Marl, Sands, Salts etc.295.2~174.63 3/4-6 7/8245-490100-50
187.3~346.17 3/8-13 5/8490-78490-40
Medium softShale, Marl, Sandstone, Soft Limestone etc.395.2~174.63 3/4-6 7/8245-49080-40
187.3~311.17 3/8- 12 1/4490-78480-40
mediumHard Shale, Limestone, Medium/Hard Sandstone etc.495.2~174.63 3/4-6 7/8294-53980-60
187.3~241.37 3/8-9 1/2539-83360-40
medium hardHard Dolomite, Limestone, Hard Sandy, Rock etc.595.2~174.63 3/4-6 7/8294-53980-60
187.3~241.37 3/8-9 1/2539-83360-40
hardSandy, Shale, Quartzite, Hard Dolomite, Hard Sandstone etc.695.~-174.63 3/4-6 7/8294-53980-40
187.3-215.97 3/8-8 1/2580-88260-40
Very hardQuartzite, Chert, Basalt Granites, Pyrites etc.795.2-174.63 3/4-6 7/8294-53980-40

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