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Brand Name : MING
Model Number : MRING168mm
Certification : ISO9001
Place of Origin : CHINA
MOQ : 1PC
Price : 999-99999USD/PC
Payment Terms : T/T, D/A, D/P, Western Union
Supply Ability : 2000PCS/MONTH
Delivery Time : 4-5WEEKS
Packaging Details : WOODEN CASE
Material : High Manganese Steel,Carbide
Use : Well Drilling,Ore Mining,Quarry or mining or well drilling
Type : Drill Bit,Symmetrix Casing,odex drilling system,Odex overburden system
Machine type : Drilling Tool
Processing type : Forging,Machining process
Product name : Eccentric Drill Bits,Concentric Casing System
Color : Gold,Required,Yellow,Red
Application : Quarry,construction,mining,water well drilling,mining or welling drilling
Usage : Hole Drilling,Mining&Construction&Water Well Drilling
Advantage : High Performance,High-efficiency
Diameter : 108-273mm
Model type : Cop,Halco,DHD,Mission,NUMA
Name : ODEX System (eccentric Overburden System)
Item : Overburden Drilling Casing System
Hammer type : Overburden drilling system,DHD3.5 DHD340 DHD350 DHD360 DHD380 DHD110 DHD112
Button shape : Spherical/Ballistic/Parabolic/Sharp/Flat,and ballistic shapes buttons
Advantages : high strength,High performance,High quality and factory prices
Standard : ISO9001
Product name: 168mm Symmetric loose ground casing drilling ringbit without casing shoe
Outer diameter casing pipe: 168mm
This overburden drilling systems are designed to use ring bit which is not connected to casing shoe.
Product components:
Pilot bit + ring bit + casing shoe
Production details:
| Model | External Dia.(mm) | Casing Dia.(OD*ID) | Spline | 
| MK-MRING90 | 125 | 114*102 | MACH33, DHD3.5 | 
| MK-MRING115 | 155 | 139*127 | DHD340, SD4, QL4 | 
| MK-MRING140 | 188 | 168*153 | DHD350, SD5, QL5 | 
| MK-MRING165 | 215 | 194*181 | DHD360, SD6, QL6 | 
| MK-MRING190 | 238 | 219*206 | DHD360, SD6, QL6 | 
| MK-MRING215 | 276 | 254*240 | DHD380, SD8, QL8 | 
| MK-MRING235 | 293 | 273*254 | DHD380, SD8, QL8 | 
| MK-MRING240 | 293 | 273*260 | DHD380, SD8, QL8 | 
| MK-MRING280 | 345 | 323*303 | SD10 | 
| MK-MRING315 | 375 | 355*335 | SD10 | 
| MK-MRING365 | 432 | 406*387 | N120, N125, SD12 | 
| MK-MRING460 | 530 | 508*483 | N125, N180 | 
| MK-MRING510 | 580 | 559*533 | N180 | 
| MK-MRING560 | 635 | 610*584 | N180 | 
| MK-MRING610 | 695 | 660*632 | N240 | 
| MK-MRING660 | 735 | 711*685 | N240 | 
| MK-MRING710 | 785 | 762*736 | N240 | 
| MK-MRING745 | 838 | 813*780 | N240 | 
| MK-MRING810 | 886 | 864*838 | N240, N240S | 
| MK-MRING860 | 935 | 914*884 | N240S | 
| MK-MRING910 | 980 | 965*935 | N240S | 
| MK-MRING960 | 1038 | 1016*986 | N240S, M330 | 
| MK-MRING1010 | 1090 | 1067*1041 | M330 | 
How to order:
Casing Tube OD & ID + Ring Bit Diameter + Hammer Shank + Maximal Normal Bit Diameter +
Casings and Casing Shoes Installation Method (if by threads, threads standard must be offered)
RFQ:
1. What is Symmetrix drilling?
Previously known in our industry as Concentrix, the updated Symmetrix system allows for the
simultaneous casing and drilling of a hole. The system consists of three main components: pilot bit, ring bit (reamer) and casing shoe
2. Why is overburden important?
In a petroleum system, the overburden rock overlies the source rock and contributes to its thermal
maturation because of higher temperatures at greater depths. The age and thickness of the overburden
rock determines the burial rate and thereby influences the heating rat.
3. Where do they put overburden?
The most common use for the large volumes of overburden produced by a surface mine is to remediate and
reclaim the area where it was first removed. Putting the sand, rock, and clay back where it came from helps
rebuild the level of the soil so that plant life can return.
Products Manufacturing:




|   | 
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