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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

China Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling supplier

Large Image :  Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Product Details:

Place of Origin: China(mainland)
Brand Name: Jincheng Drilling Tools
Certification: ISO9001,CE
Model Number: Concentric Overburden Bits

Payment & Shipping Terms:

Minimum Order Quantity: 3pcs
Price: Negotiable
Packaging Details: standared export package
Delivery Time: 3-15days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 1000000pcs/year
Detailed Product Description
Name: Concentric Overburden Bits Length: As Required
Bit Face Shape: Flat, Concave, Convex, Drop Center Type: Down The Hole Drill Bits
Color: Blue ,black,customized Package: Wooden Box
High Light:

downhole drilling tools

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down the hole drill bits

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

 

Description
The eccentric reamer drill is an overburden drilling system designed for conditions where a cased hole is required. Collapsing holes tend to make overburden drilling expensive, with lost drilling equipment and down time.
The eccentric designed bit rotates outward and drills a larger diameter hole than the casing, avoiding cave-ins, wash-outs, and other problems common in normal drilling operations in soft and gravel-type strata or loose rock. Since 90% of the world's overburden drilling is in loose strata, potential utilization is enormous.
After reaching the designated depth, the reamer-bit is retracted by reversing the direction of the rotation and by applying tension on the reamer-bit, which has a taper and will retract into the casing for easy removal of the entire drill-string. This leaves the casing in place for other applications or for removal at a later date. The method is designed for use with flush joint threaded pipe or welded-type casing and provides a bit size for a wide variety of different casing wall thicknesses.

 

Parametre

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Usage

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

 

Minimum Order Quantity: N/A
Price:  
Packaging Details: Standard Export Delivery Package
Delivery Time: 7days
Payment Terms: T/T
Supply Ability: Based on Detailed Order

 

FAQ
1. Shipping time for an order
We have many stock. As usual, we can delivery the goods as soon as we get the full payment.
2. Quality Control
Strict inspection and testing for every order before shipping out .
3. How can we trust your company?
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Contact Details
Beijing Jincheng Mining Technology Co., Ltd.

Contact Person: Mr. Jack Cheng

Tel: +8613811934576

Fax: 86-10-57159802

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