146 symmertrix system with ring bits(Retriveable)

Specifications

Usage:

1.Usually used in water well drilling.

2..In not stable rock formation,the casing is necessary to follow.

3.Match to 4" hammer and 146 casing.

4.Max outer diameter of normal bit is 115mm

5.Air pressure is 20 Bar and air volumn is 500 cfm.

Advantages:

1.Combine the ring bit and casing shoe together as a ring bit set to make larger pass-through diameter.

2.Ring bit set can be got out and use again,saving drilling cost.

3.Easy operation,reliable performance and high drilling rate.

Quality warranty

The company is responsible for any problem caused by defaulty of material and maching. The broken parts will be replaced at the sight of photos and product serial code.

How to complete the whole deal

Step: 

1. Firstly decide the design, material and color 

2. Decide the size in accordance with client's requirement and our

 recommendation 

3. We will give the best offer. 

4. Client's accept the offer and we send proforma invoice. 

5. Client transfers 30%-50% deposit and production begins

6. After production, we will send ready products photo 

7. After client's confirmation, we will arrange shipment, and send 

copy shipping documents like B/L, commercial invoice and 

packing list 

8. Client transfer balance payment and we will send original 

documents by DHL or EMS