ISO9001 3m Length DTH Hammer Directional Drilling Pipe Double Wall

Double Wall Drill Pipes For RC Reverse Circulation DTH Hammer

Product Description

The non-grooved double-wall drill rod is composed of an inner drill rod and an outer drill rod (called inner drill rod and outer drill rod).

The inner cavity hole of the inner drill pipe is a channel for pumping water or mud to the construction hole during operation.

In engineering operations, the outer drill rods are connected to each other by threads, and the inner drill rods are connected by male and female joints of internal and external hexagonal structures.

When the inner and outer drill rods are driven by the time-sharing power output, they rotate independently and transmit torque by shifting.

Double wall drill pipe

Features of Drill Rod

1. Made of high-quality alloy steel.

2. All our drill pipes are heat treated.

3. Reasonable structure, reliable performance and high use efficiency.

4. Good concentricity, high precision and long service life.

Used in

Our drill pipe is suitable for drilling deep holes. They are widely used in geology and minerals, metallurgy, mining, oil drilling industries, etc. According to the driller's feedback, our drill pipe has been drilled to a depth of 2000 meters. Budweiser has many years of experience in manufacturing core drill pipes, and we are dedicated to providing you with the most cost-effective products.

Drill pipe quality control:

1. Before order to be confirmed, the raw material of pipe and tool joint body should be booked from famous big steel enterprises in China.

2. Checked by our QC staff and factory own laboratory.

3. Every drill pipe has nondestructive inspection , cleaned and breach oil before packing.

4. Before delivery clients could send one QC or point the third party to check the quality such SGS, BV or others.

Our Services:

1. Drill pipe strictly according to API ISO9001 standard.

2. If you found to quality problems within one month of the package returned.

3. All strictly according to the contract and fulfill the obligations and responsibilities.

4. 24 hours online customer service,feel free contact us.

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.