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Brand Name : MING
Model Number : MRS235-QL8
Certification : ISO9001
Place of Origin : CHINA
MOQ : 1PC
Price : 999-99999USD/PC
Payment Terms : T/T, D/P, Western Union
Supply Ability : 2000PCS/MONTH
Delivery Time : 3-5WEEKS
Packaging Details : WOODEN CASE
Material : Carbide Alloy
Application : Construction,water Well Drilling
Usage : Hole Drilling,Mining&Construction&Water Well Drilling
Product Name : Concentric Casing Drilling System
Color : Gold,Request,Yellow,Red
Type : Symmetrix Casing Drilling Bit, Overburden Casing Drilling System
Machine Type : Drilling Tool,Drilling Equipment
Advantage : High Performance,High-efficiency
Hs : 82071990
High Light : 293mm Concentric Casing Drilling System, MRS Concentric Drilling System, Overburden Casing Drilling System
Product name: 293mm MRS235 Overburden Concentric Casing Drilling System Bit With 3 Reamers For Mining
Casing tube OD: 235mm
Featuring a simple structure, our MRS Overburden Casing Drilling Bit minimizes the chances of structural failure, ensuring a safe and efficient drilling process. Its convenient operation allows professionals to utilize it with ease. No more struggling with complex tools – our MRS Bit simplifies the drilling experience for everyone.
Not only does our MRS Bit prioritize durability, but it also takes care of both drilling wear life and drilling efficiency. With its hardened surface, it effectively prevents wear and tear, enabling consistent performance over time. Additionally, its design ensures efficient drilling, saving you time and effort during your projects. Invest in our MRS Bit today and enjoy enhanced durability, efficiency, and convenience in your drilling tasks.
Product components:
1. Pilot bit+3PCS wiggle wings+casing shoe
2. Pilot bit+4PCS wiggle wings+casing shoe
Production details:
| Model | Hole dia.(mm) | Weight (KG) | Closed dia (mm) | Pilot dia (mm) | Total length (mm) | Case Dia (OD*ID) | Spline | 
| MK-MRS190 | 238 | 80 | 190 | 203 | 550 | 219*206 | DHD360,QL6,SD6 | 
| MK-MRS215 | 276 | 100 | 215 | 236 | 590 | 254*240 | DHD380,QL8,SD8 | 
| MK-MRS235 | 293 | 110 | 236 | 251 | 590 | 273*254 | DHD380,QL8,SD8 | 
| MK-MRS240 | 293 | 115 | 241 | 256 | 590 | 273*260 | DHD380,QL8,SD8 | 
| MK-MRS280 | 345 | 180 | 280 | 300 | 740 | 323*302 | SD10 | 
| MK-MRS315 | 373 | 240 | 315 | 336 | 1050 | 356*337 | N120 | 
| MK-MRS365 | 432 | 350 | 365 | 381 | 1100 | 406*387 | N120,N125 | 
| MK-MRS410 | 478 | 460 | 412 | 430 | 1100 | 457*435 | N125 | 
| MK-MRS460 | 530 | 585 | 460 | 475 | 1100 | 508*483 | N125,SD18 | 
| MK-MRS510 | 580 | 860 | 509 | 527 | 1180 | 559*533 | N180,SD18 | 
| MK-MRS560 | 635 | 910 | 560 | 581 | 1180 | 610*584 | N180,SD18 | 
| MK-MRS610 | 695 | 1100 | 600 | 630 | 1200 | 660*632 | N240 | 
| MK-MRS660 | 735 | 1200 | 656 | 681 | 1207 | 711*685 | N240 | 
| MK-MRS710 | 785 | 1480 | 710 | 730 | 1207 | 762*736 | N240 | 
| MK-MRS745 | 838 | 1650 | 745 | 776 | 1207 | 813*780 | N240 | 
How to order:
Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
Product advantage:
 1.Enhance penetration and perpendicularity
 2.Reduce torque requirements
 3.Deal with straight,oblique hole and other angle holes
 4.Lowest effect with environment
RFQ:
1. What is an overburden well?
The overburden wells are usually composed of sands and gravels and they include those constructed into the geological materials that are above bedrock. Most water wells come with a well screen that lets groundwater into the well while keeping away sand and other materials.
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?
Remediation and reclamation of the original extraction site are the most typical uses for the massive amounts of overburden generated by a surface mine. Returning the sand, rock, and clay to their original locations helps to reestablish the soil's level, allowing plant life to return.
Product manufacturing:



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