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Beijing Faster Drilling Tools Limited

International Department

Metis Lau (Sales Manager) 

E-mail:manager@fasterdrilling.com
Personal E-mail: metislau@qq.com
Mobile:+86-15832778810
Office:+86-317-3665870
WhatsApp: +86-15832778810
Skype:  metislau
QQ/WeChat:375071492
Address: No.137 of Yucai Road,Hejian City,Hebei Province,China
http://www.fasterdrilling.com

Hole Opener current location: 首页 > Products > Hole Opener > FH Series Pilot Hole Opener Cone Bit

FHSeries
Pilot Hole Opener Cone Bit



Cutting Structure
Reaming bit mainly consists of four or more cones. Main cutting tooth is steel tooth welded new-type wear-resistant alloy. High quality tungsten carbide tooth of new formula and new technique increases the service life of reaming bit. The pilot is roller cone bit
Seal and Lubrication
The bearing seal applys high performance HNBR O-ring seal and imported lubrication grease special for bit.
Product Predominance
It is applied in the big size casing well section, mining and infrastructure building drilling.

Available Sizes, Types and Recommended Operating Parameters of Bits



Bit Size

Bit Type

inch

mm

15

381

FH117G  FH127G  FH517G  FH537G  FH617G

28

711.2

FH117G  FH127G  FH517G  FH537G  FH617G

30

762.0

FH117G  FH127G  FH517G  FH537G  FH617G

32

812.8

FH117G  FH127G  FH517G  FH537G  FH617G

36

914.4

FH117G  FH127G  FH517G  FH537G  FH617G

 

IADC

Recommendation

Applicable Formation

WOB

RPM

117  127

0.35~0.9

150~70

Soft formations with low compressive strength and high drillability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.

517  537

0.4~1.0

120~60

Soft to medium formations with low compressive strength, such as medium soft shale, hard gypsum, medium soft limestone, medium soft sandstone, soft formation with harder interbed, etc.

Note: the maximum value of WOB and RPM in this table can not be adopted at the same time.


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