Cangzhou Great Drill Co., Ltd is located in North China Oil Field, Junziguan industrial zone Hejian, north Beijing,

east of Tianjin Port, whose registered fund is RMB7 million yuan. Our company specializes in designing, manufacturing

and marketing high performance diamond bits and drilling tools which are used in petroleum industry. Our company was established

by the top grade experts of the field and is equipped with advanced equipment and facilities. Our diamond bits are named as Great,

with specifications ranging from 2-7/8" to 17-1/2". All our products have passed ISO 9001

certification.

Surface set diamond core bits can be used with any type of core barrels. By varying the diamond grade, size, quality, and matrix

hardness and crown shapes, the users can satisfactorily drill and core hard formations. To avoid excessive matrix wear at the leading

edge of each segment, tungsten carbide inserts are fitted on each side of the waterway. This kind of bits cannot be used in broken

or loose formations.

Feature:Improved support and retention

Advantage:Manage the magnitude cutter loading and bit torque.

Benefit:Improved bit durability and directional responsiveness

Advantage:

1) Certified by ISO9001&API

2) High quality with reasonable price
3) Fast drilling rate
4) Strong cutting structure durability
5) Different sizes as required

6) welcome to our factory for a visit

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