DHD340 water well drilling bit / odex hammer drill bit tool / Eccentric Overburd

Eccentric casing System

Hardening treatment of the part’s surface：with longer operating life and excellent anti-wear properties. 

Structural optimization：Strengthen the structural strength, easy to operate

Superior performance：Stable and reliable performance, high drilling speed 

Working Principle of Drill:

1.When start drilling , the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly.

2.When the required depth is reached, rotation is reversed carefully, whereupon the reamer swings in. Allowing the drill bit assembly to be pulled up through the casing.

3.Casing tubes that are to be left in the drill hole should be sealed at the bottom of the hole by means of cement grout or some other sealing agent.

4.Drilling continues to the desired depth in the bedrock using a conventional drilling.

---------------------------------------------FAQ---------------------------------------

Q:How can I know how much I should pay the delivery charge?

A:When you place an order, we will calculate the approximate gross weight, then according to the current Airfreight rate or Ocean Freight rate and add Chinese customs formalities & documents charge we get the final charges. We will let you know and print it in the Proforma Invoice of your order.

Q: Can I choose the face shape & carbide button shape to my products?

A: Sure, we can customized according to customer requirements, pls contact with our sales directly.

Q:I want to be your agent, what is the conditions?

A:If you want to be our agent, the good capability of marketing is necessary, the other items we can settle down by negotiation.