| After-sales Service: | Provided |
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| Warranty: | Provided |
| Type: | DTH Drill Tools |
| Application: | Drilling |
| Certification: | CE, ISO9001: 2000 |
| Condition: | New |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier JCDRILL DTH Over Burden Concentric Bits
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.
Please contact me directly for more informations.
Business Information
| Minimum Order Quantity: | N/A |
| Price: | Negotation |
| Packaging Details: | Standard Export Delivery Package |
| Delivery Time: | 7days |
| Payment Terms: | T/T,Western Union |
| Supply Ability: | Based on Detailed Order |
Cedar Jiang Sales Manager BEIJING JINCHENG MINING TECHNOLOGY CO., LTD Add: Rm1407,Building A, NO. 13 Beiyuan Road,Chaoyang,Beijing, China Web: cnjctech.en.made-in-china.com |
Suppliers with verified business licenses
Audited Supplier 
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