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Water Well Drilling Drill Bit Water Well Drilling Drill Bit Water Well Drilling Drill Bit Water Well Drilling Drill Bit
Water Well Drilling Drill Bit
Water Well Drilling Drill Bit Water Well Drilling Drill Bit Water Well Drilling Drill Bit

Water Well Drilling Drill Bit

1 USD ($)/Piece

Product Details:

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Price And Quantity

  • 1 USD ($)/Piece
  • 1.00 - 1.00 USD ($)/Piece
  • 1 Piece

Product Description

IADC

Rok Formation

WOB (KN/mm)

RPM(r/min)

417/427/437

Low compressive strength, high drill-ability and extremely soft formation, like shale, clay, sandstone, conglomerate etc

0.35~0.90

140~70

447

Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, plaster

etc.

0.37~1.00

140~60

517

Low compressive strength, high drill-ability and soft formation, like shale, clay, sandstone, soft limestone, salt rock, etc

0.37~1.00

120~50

527

Soft formation with low compressive, like Low compressive strength, high drill-ability and soft formation, like shale, clay,

sandstone, soft limestone, salt rock, anhydrite etc.

0.35~0.90

120~50

537/547

Low compressive strength, medium hard formation with hard abrasive interlayer, like Hard shale, anhydrite, soft limestone,

sandstone, dolomite with mezzanine, etc.

0.50~1.05

110~40

617/627

High compressive strength, medium hard and thick hard interlayer, like hard shale, limestone, sandstone, dolomite, etc.

0.50~1.05

80~40

637/737

High compressive strength, medium hard and high abrasive formation, like limestone, dolomite, sandstone, chert, etc.

0.70~1.20

70~40

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