| Certification: | ISO 9001:2000, SGS |
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| Standard: | GB |
| Surface Treatment: | Spray-Paint |
| Manufacturing Process: | Forging |
| Material: | Carbon Steel |
| Hole Dia.: | 125mm |
| Samples: |
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| Customization: |
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Audited Supplier MRE Concentric under reaming drilling system is designed for unstable ground conditions. In the process of drilling, it could carry down the casing pipe to the hole to protect wall to achieve drilling work. At clockwise condition, eccentric part expanded to bring the casing tube into hole. After finished, eccentric bit closed anticlockwise and then can be lift up by the drilling machine. This type is especially suitable for diameter 114-273mm.
Advantages:
1.Improved steel grade for better fatigue properties
1.How to order:
A:Casing Tube OD & ID + Reamer Bit Diameter + Minimal Casing Shoe ID + Hammer Shank Style
2.How about the common packing?
A: If there is no special packing demand, we will take it as our normal packing. First in small carton, and then put in the bigger carton together to make sure goods completed.
3. Are you original manufacturer or trading company?
A: We are an integrated corporation specialized in manufacturing and exporting.
4. How can you ensure the quality?
A: We have our professional QC and all the products will be strict inspection and testing for every order before shipping out.
5. How is your delivery time?
A: Usually it takes 25 days for production.only 3 or 5 days if we have stock of your request size
5. Shipping way
A: Sample order: we suggest Courier express delivery such as DHL/UPS/TNT/FEDEX or by air/by train
Bulk order: by air or by sea we suggest.
Packed by Carton or Wooden cases.
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Audited Supplier 
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