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Eccentric PDC Bit 8 1/2 - 8 5/8 ERS1615
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Eccentric PDC Bit 8 1/2 - 8 5/8 ERS1615

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  • 8 1/2 - 8 5/8 ERS1615

  • EASTAR

PRODUCT SPECIFICATIONS
Number of Blades5
Cutter Quantity66
Primary Cutter Size16mm
Primary Cutter Quantity31
Gauge Length70mm
Junk Slot Area7500mm2
Connection4 1/2 REG
Bit Weight45KG
Nozzle Quantity/Type7NZ
OPERATING RECOMMENDATIONS
Weight on Bit30~120 KN
Rotatoin Speed50~250 RPM
Hydraulic Flow Rate25~40 L/S
Recommended Torque16.63~23.71 Kn•m
Design Features
Suitable for drilling soft to medium hard formations
Bit body is made of superior alloy steel which has excellent strength and toughness&Bit surface is reinforced in order to prevent erosion and prolong service life of the bit.
Middle or low density cutter arrangement and deep & wide junk slot design to satisfy requirement for fast drilling applications.
Applicable range of the bit is widened through utilization of technologies such as  impact resistant cutting structure and auxiliary cutters, etc
CFD hydraulic balance design.


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