STS is an escrow service that protects both buyers and suppliers. Funds are held securely by Made-in-China.com until order terms (e.g., delivery, quality) are fulfilled
| Customization: | Available |
|---|---|
| Surface Treatment: | Without Processing |
| Manufacturing Process: | Casting |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
|---|
Payment Guarantee
Platform-protected payments with refund support for eligible order issues.
Platform Logistics
Inspection Service
After-Sales & Dispute Handling
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Size |
Inner tube o.d * thickness |
Outer tube o.d * thickness |
Drill bit o.d | Core diameter |
Bits size |
|
| BQ | 42*2.5 | 58*6 | 60 | 36.4 | BQ | |
| NQ | 56*3 | 73*6.5 | 75 | 47.6 | NQ | |
| HQ | 73*3 | 93*7 | 95 | 63.5 | HQ | |
| PQ | 93*3 | 114*6 | 122 | 85 | PQ | |
| tunnel core barrel |
KBQ | 43*3 | 58*6 | 36.4 | BQ | |
| KNQ | 56*3 | 73*6.5 | 47.6 | NQ | ||
| KHQ | 73*3 | 93*7 | 63.5 | HQ | ||
We can also support Core Drilling accessories:
Hoisting Plug /Reamer Shell/Fork/Pipe Wrench/UL-FORK/Adaptor/Core Shifter/ROD wrench/Stabilizer/BQ,NQ,PQ,HQ Drill Rod etc.
Packing: Seaworthy Packing
Delivery: about 30 days after your down payment.
){kind=link}