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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Specifications
Brand Name :
JCDRILL
Model Number :
All Models
Certification :
ISO9001,CE
Place of Origin :
China (Mainland)
MOQ :
5pcs
Price :
$15.00 - $50.00/pc
Payment Terms :
L/C, T/T, Western Union, D/A, D/P, MoneyGram
Supply Ability :
100000pcs/year
Delivery Time :
3-15 work days
Packaging Details :
Wooden box
Parts Name :
Over burden bits
Brand :
JCDRILL
Color :
customized
Factory Visit :
Support
Sample Order :
Support
Usage :
Hole drlling
Description

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

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.

Application

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

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

Certification

Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Delivery
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
FAQ
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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Product tags

pcd rock drill bit

,

casing drilling bit

,

impact drill bit set
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Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

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Product Detail
Brand Name :
JCDRILL
Model Number :
All Models
Certification :
ISO9001,CE
Place of Origin :
China (Mainland)
MOQ :
5pcs
Price :
$15.00 - $50.00/pc
Contact Supplier
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling
Hard Rock DTH Drilling Tools Concentric Overburden Casing Bit Hole Drlling

Beijing Jincheng Mining Technology Co., Ltd.

Verified Supplier
8 Years
beijing, beijing
Since 1999
Business Type :
Manufacturer
Main Products :
Rock Drilling Rig, Water Well Drilling Rig, Portable Water Well Drilling Rig
Total Annual :
30 Million-40Million
Employee Number :
250~300
Certification Level :
Verified Supplier
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