1.Introduction:

Extension rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. This hollow hole are usually named flushing hole, used for transmitting water or air during drilling. And the threads can be used for connecting couplings, shanks, couplings or bits.

Products Detail

Do you want to know our products' features?

1).Made from steel as same grade as internationally well-known brand

2).Hollow drill steel processing by Boring Method ensuring quality reliability

3).Optimize processing procedure, entirely automatic threading equipment to finish the thread naturally and reduce the concentration of stress.

4).Shape once of whole heat-treatment ensures long lifespans.

1. Tapered drill rod and Tapered drill bit. The tapered degree would be 6°, 7°, 11°, 12°;

2. DTH Bit and DTH Hammer suit for DHD, QL, M, BR series;

3. Thread Button Bit and drill rod suit for R22, R25, R28, R32, R38, T38, T45, T51 etc.;

4. Self-drilling anchor tools;

5. Parts like shank adaptors, coupling sleeve etc.e

Other relative products

We are different from other companys.

We can provide various products including Tapered drilling rod,Thread drilling rod,Extension rod and Drifter rod. 

We can customize all of the parameters that you want.

Henan King Kong Drills Co., Ltd

    King Kong Drills company. A supplier of Rock Drilling Accessories for the Rock Drilling Rigs, Coal Mining Cutting Picks, Thread/Tapered Drilling Rods, Button Drill Bits, Cross Button Drill Bits, Tapered Drill Bits, Integral Drill Rods, Rock Plug Hole Rods, taphole drill rods, rock paving breaker tools, rock self-anchor bolts). DTH drilling tools( rock DTH hammers and rock DTH bits with air consumption 1.5-2.5Mpa, DTH rock hammers and bits with air consumption 0.4-0.7Mpa ). Drilling pipes, Shank adapters, reverse circulation drilling tools, mining tools, cutting picks, tungsten carbide bits, tips, etc.
  We always can provide the best, medium, normal quality of rock breaking tools properly with reasonable prices for our clients. And what we are always trying to do is making clients happy with our rock drilling tools and service and what's more is that we believe in is making a little bit effort every day and a giant step will come sooner or later.Our service is 24hours, 7 days a week, 12 months per year as long as you need us.

   All your inquiry will be highly appreciated,and all your emails will be replied in no more than one day as long as we see it. Anyway, our company and team are here to provide you with amazing convenience and professional service.

 Contact me

Q1.Why choose us?

A1. High quality products. Good price, professional team work, Enough ability to export.

Q2. Where are our products applied to?

A2.Mine, tunnel,slope,foundation pit.

Q3. Do you have different quality for different kind of stone?

A3. Yes, according hardness of stone and stone’s feature, we have different typology              respectively.

Q4. If we need technical support, can you offer us?

A4. Yes, we have an experienced team, offering our customers additional benefits with            specific advice, by our product managerment staff, engineers and technicians.

Q5. Do you offer free samples?

A5. Normally we do not offer free samples, but we could  properly adjust according to             detailed requirement.

Q6. Is there cheap shipping cost to import to our country?

A6. For small order, Express will be the best.

      And for bulk order, sea ship way is best but take longer time.

      For urgent orders, we suggest via air to airport or by Express send to your door.

Q7. Which Express company you send? How many days we can receive?

A7. We are official partner of TNT, UPS, DHL, Fedx. it will take only 3-5 days after we sent.

Q8. When you can reply to me when I send you an Inquiry?

A8. We promise to reply within 24 hours( including holidays) on receipt of your inquiry.