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Rotary drill bit
4 1/2'' 217
Rock Bit


Drill bit Parameters

Tri-cone bit type

4 1/2'' 217

Diameter

114.3mm

IADC

217

API Pin Connection

2 3/8'' API REG

WOB(KN/mm)

0.5~1.20

RPM(r/min)

100~50

Applicable Formation

Medium hard with relatively higher compressive strength and hard   stringers, such as shale, sandstone and limestone, etc.

Features

This   bit can sustain higher WOB under normal rotary speed.

  Note:   the upper limits for the bit weight and rotary speed recommend in the table   can not be      used at the same time.


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Hubei Ou Rui Petroleum Machinery Equipment Co.,Ltd.
Hubei Ou Rui Petroleum Machinery Equipment Co.,Ltd.
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Hubei Ou Rui Petroleum Machinery Equipment Co,.Ltd.

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