Changsha Drilling Machinery CO., LTD

Contact Us

Name: Perry Tan
Tel: 0086-731-84077805
Fax: 0086-731-84072772
E-mail: csdrillingtools@vip.126.com
E-mail: info@csdrillingtools.com
Add: 5# Panpan road, economic development zone, Changsha, Hunan, China. Zip 410100
Skype: csdrillingtools
QQ: 2522716948
Skype: csdrillingtools QQ: 2522716948 csdrillingtools@vip.126.com info@csdrillingtools.com

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Bit Profiles
 Bit profiles

 

Semi-round profile

Profile for high penetration rate. Lower carat weight than other profiles.
Standard profile for surface set thin kerf drill bits.

 

Multi step profile

Allows higher penetration rates than round profile. Fragile in fractured
formation, i.e. surface set wireline bits.

 

Two wide steps with face discharge profile

For use in soft formation with face discharge, surface set T6S,
S Geobor and triple tube NK3, HK3, PG3.

 

W profile

Standard profile for most impregnated bits.

 

Sawtooth profile (side view)

Sawtooth profile is used only in tripax bits.

 

Flat profile

Profile for some impregnated bits.

 

Concave profile

Profile only for non-coring bits.