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FACTORY:Junziguan,Shijingcun Town, Hejian City , Hebei Province , China

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

Summary information
8 1/2" PDC bit M137
Affiliate classification

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

   PDC Bits - 8 1/2''


Products Speification              
                                      Number of Blades    7
                                    Primary Cutter Size   13mm
                                                 Nozzle Qty.    6NZ
                                            Gauge Length    2.2 Inch
Operating Parameters  
                                                RPM (r/min)    60~260
                                                   WOB(KN)    20~100
                                           Flow Rate (lps)    22~35
                                                Application Medium-hard to hard formations with low
compressive strength , such as hard shale,
limestone, sandstone, dolomite, hard gypsum,
marble, etc.
                                                  Features The M1375 is a matrix body PDC bit with 7
curved blade with back-reaming and spiral
gauge protection. Optimized Hydraulie design
and enhanced cleaing and cooling effects of
the bits to prevent bit from balling


Regular sizes of PDC cutters are 8mm, 13mm, 16mm, 19mm.


Regular blades quantities of PDC bits range from 3 to 9.


The smaller PDC cutters the harder rocks it can drill, the more blades quantity the harder it can drill. But penetration rate will be slower down after adopting smaller cutters and more blades, so choosing the best configuration of PDC bits is very important before starting projects.


Drillers should consider:


1> Matrix body or steel body.


2> Cutter sizes and blades quantity.


3> Double rows cutters or single row.


4> Spiral or normal gauge protection, gauge length, gauge protection materials.


5> Nozzles.


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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