4IF Type Threads DTH Heavy Double Wall Drill Pipe 6m Length

41F Type Of Threads Or Customized As Required Double Wall Drill Pipe

Product Description

In order to realize the reverse circulation drilling process of the through-the-hole DTH hammer, the matching drilling tool system mainly includes a double-wall drill rod. In addition to the through-the-hole DTH hammer used to realize the impact effect, a reverse circulation drill bit and a double channel are also required Faucet, and other auxiliary tools. The double-arm drill pipe is one of its core components

Double wall drill pipe

Drill pipe usage notes:

1.New drill pipe should be pasted thread oil before connection

2.Make up and break at least 3 times before drilling

3.Hard bending and plastic coating can be processed according to costumer special requirement.

water well tubing

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.

Q: How long is your delivery time?
A: Generally it is 7-30 days if the goods are in stock. or it is 30-60 days if the goods are not in stock, it is according to quantity.

Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample need to pay the cost of products and freight.

Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.