Sinodrills DTH Casing Drilling

Eccentrics/ Odex/ Tubex Drilling System

Eccentrics/ Odex/ Tubex Drilling System size:

--ODEX 90 for 3” hammers, including Guide device, casing shoe, reamer and pilot bits;

--ODEX 115 for 4” hammers, including Guide device, casing shoe, reamer and pilot bits;

--ODEX 140 for 5” hammers, including Guide device, casing shoe, reamer and pilot bits;

--ODEX 144 for 5” hammers, including Guide device, casing shoe, reamer and pilot bits;

--ODEX 165 for 6” hammers, including Guide device, casing shoe, reamer and pilot bits;

--ODEX 190 for 6” hammers, including Guide device, casing shoe, reamer and pilot bits;

--ODEX 240 for 8” hammers, including Guide device, casing shoe, reamer and pilot bits.

Symmetric/Centrex/Symmitrix Drilling System

Symmetric is a concentric drilling system with retrievable pilot bits.
This system drills in any direction and in any type of ground condition.
It is, in fact, the most flexible and efficient overburden system on the market today.

The Symmetric components are made up of:
---A pilot bits with large internal flushing holes and external flushing grooves
---Symmetrical ring bit (reamer) with internal bayonet coupling
---Casing shoe for driving of casing.
The Pilot bits is attached to any common DTH hammer shank.