Specifications

1.For 114mm casing drilling for water well
2.Hammer size:3.5" DHD3.5
3.flexible to open and close
4.easy to follow casing

Usage

1.Usually used in water well drilling,for large hole boring.

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

3.Match to 3.5" hammer and 114mm casing.

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

 

Advantages

1.Flexiable to open and closed.

2.The pilot bit guide the drill string and makes a straighter hole.

3.Divided wings set saves costs when replacement is necessary.

4.Smaller torque and vibration power.

5.Easy to follow the casing

 

 

 

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