CALL US
+86-13161769999
You can contact us any way that is convenient for you
Cangzhou Great Drill Bits Co.,Ltd. REQUETS A QUOTE
Cangzhou Great Drill Bits Co.,Ltd.
Rock Reamer

Rock Reamer Bits With Replaceable roller cone bit

Overview of Rock reamer

The Rock reamer produced by GREAT company is used to expand the diameter of the pilot hole and is mainly used for horizontal directional drilling of oil, natural gas, electric power, and other pipelines. The Rock reamer is designed for reaming a variety of rock formations in the ground. The cone part is made up of a milling cutter for soft formations and a carbide insert with hard formation for different formations.


The cutting teeth of the cone use TCI cutters or Steel tooth cutters. And the teeth have good wear resistance and the speed of the drill is fast. Intensive palm tip welding and full palm back protection, the cones are divided into back dimension and the diameter is protected by a protective design to effectively enhance the resistance of the drill bit.


Apply wear-resistant alloy or carbide tooth on the front stiffener or block surface. In order to reduce the weight of the hole opener without affecting the support strength, the front centralization plate adopts a hollow design.


GREAT hole opener uses a sealed high-energy rolling bearing system processed and assembled at an extremely strict tolerance.


Each reamer has a sealed automatic compensation lubrication system that balances the internal and external pressure of the bearing and protects the bearing and sealing system.

The Details of Rock Reamer


the details of rock reamer


GREAT Rock Reamer-1


GREAT Rock Reamer-2

GREAT Rock Reamer-3


GREAT Rock Reamer-4


The Advantage of Rock Reamer

  • The hole opener produced by GREAT is a low-torque reamer that can be reamed with a small rig to reduce drilling costs.

  • The cone unit on the GREAT hole opener also can be replaced, and a set of bodies can be used multiple times, saving engineering costs for customers.

  • The production of large-size tricone bit or multi-cone drill bits is not only difficult to process but also extremely costly. 

  • The use of GREAT rock reamer can solve these problems, and manufacturers can produce various sizes of hole openers according to customer requirements.

It is one of the blggest PDC drill bit manufacturing companies in Asia, and is qualifed as suppler for CNPC, Sinopec and CNOOC:


Rock Reamer Process

Rock Reamer Process


related products


We will contact you within 24 hours.
Recent Products
  • 90 ° U-shaped Roller Bit

    90 ° U-shaped Roller Bit

    Overview Roller bitGREAT has customized manufacture several types of roller bit . It is including 90 ° U-shaped Roller Bit, 120 ° U-shaped Roller Bit and Starry Sky Roller Bit.The 90 ° U-shaped Rol...
  • Matrix Body PDC Bit GM1607T

    Matrix Body PDC Bit GM1607T

    This is a 7 blade Matrix body PDC bit , with Stinger cutters back row, used for very abrasive formation.
  • RC PDC Bit

    RC PDC Bit

    RC PDC bit from GREAT are manufactured from AISI 4145H heat-treated steel
  • Steel Body PDC Bit GS1606T

    Steel Body PDC Bit GS1606T

    Steel body PDC bit is made by AISI 4145H heat treatment steel manufacture, it has lower cost compare with Matrix body PDC bit.