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9 7/8"(250.8mm) IADC537 TCI Tricone Roller Bits for Well Drilling

Summary information
9 7/8 inches TCI Tricone Bit
Affiliate classification

9 7/8"(250.8mm) IADC537 TCI Tricone Roller Bits for Well Drilling

  Tricone Bits - 9 7/8''
Products Speification              
                                                    Cone Size   9 7/8"
                                               Bearing Type   Elastomer Sealed Bearing
                                                   Tooth Type    TCI
                                         Circulation  Type   Mud Fluid
                                      Thread Connection   6 5/8 Reg Pin
                                         Gauge Protection   Available
                                       Shirttail Protection   Available
Operating Parameters  
                                                   RPM (r/min)   120~50
                                                       WOB(KN)   113~250
                                                    Application Medium formations,such as medium shale,
limestone, medium sandstone, medium
formation with harder and abrasive interbeds,

9 7/8" is 250mm in diameter, the thread connection  is 6 5/8 reg pin according to API specification.


IADC537 means that tricone roller bit is suitable for drilling medium hardness rocks like limestone, shale, gypsum, etc. The bearing is elastomer sealed to increase working life.


Tungsten carbide inserts(TCI) is very hard alloy to drilling hard rocks, the heel of cones and arm-back are full inserted with Tungsten Carbide teeth.


It is a common size in mining field, to drill blast hole. In mining drilling, first number for IADC code are usually 6,7,8,and the third number are usually 2 and 5. According to IADC specifications for tricone bit,"2" means standard open bearing roller bit,and "5" means sealed roller bearing bit with gauge protection.


In some countries, 9 7/8"(250.8mm) is often used to drill water well and geothermal well. Drill rig is circulated by mud fluid,instead of compressing air.


Therefore, for different applications, we should choose the right tricone roller bits.



Oil/Gas Well Drilling   .Water Well Drilling   .HDD(Trenchless)   .Foundation Piling
 Our Mission:
 Lower the cost of
 Who we are:
 To extract sources of energy underground.  
 To extract the water underground.
 To install pipelines underground with No-Dig. 
 To pile foundation for constructions.
 We are one of the people who makes above easier. 
 Let’s work together and enjoy this job.
A face-to-face meeting is welcomed in below exhibitions, including OTC , Bauma Germany/    China, No-Dig Shows, etc.
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