Manufacturer Drilling Casing System Eccentric Drilling Bit for Unstable Rock Formation

Product Description
When drilling in soft and loose ground with scattered boulders, the soil and clay are caved in, which creates drilling difficulty to withdraw the DTH drilling equipment and lowers the drilling speed.

To overcome this problem, KINGDRILLING Eccentric Type Overburden Casing Drilling System to enable drilling and lowering the casing simultaneously. This prevents the soil from collapsing into the drilled hole.The systems are designed to drill the hole diameters bigger than the casing diameter. When reaching the required drilled depth, the DTH hammer and Overburden Drill System can be withdrawn from the hole. If the bed-rock level is reached and further drilling is needed, you can simply change the bit to a conventional DTH bit.


Technical Date

Order Guide: 

Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style

Product features:
1. Hardening treatment of the part's surface:with longer operating life and excellent anti-wear properties.

2. Structural optimization:Strengthen the structural strength, easy to operate 
3. Superior performance:Stable and reliable performance, high drilling speed

FAQ:

1. How to order the products?

Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style

2. How about the common packing?

A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.

3. Can I expect a quality products?

A: Yes. mature production technology ensuring the quality satisfy international request.

4. How to check the product are the exact one you want?

A: If possible, please attach one reference picture to avoid any misunderstanding or any links from our website for a better understanding.

5. How to control quality?

A: We have our own experienced QC team,there will be strict inspection and testing for each order before shipping out.

6. Fast delivery time:

A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size.

7. Methods of Payment:

T/T (Telegraphic Transfer) or Western Union.

Product Application:

1. Goods in stock can be delivered within 5 days.
2. DTH Bits production time is about 15 days.
3. DTH Hammer product time is about 30 days.