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.
Usually for extension rods, there are R22, R25, R28, R32, R38, T38, T45, T51, ST58, T60 threads, and different lengths of rods are available from 600mm to 6400mm usually.
(1)Steel grade: Male-Male Rod, MF Rod
(2) Thread: R22, R25, R28, R32, R38, T38, T45, T51,
(3) Rod size: Hex. 22mm, hex. 25mm, hex. 28mm, hex. 32mm, hex. 35mm, dia. 39mm, dia. 46mm. Dia. 52mm
(3)Length: 0.4m-6m
(4)Package: In wooden case or in bundles.
(5)Productivity: 20000MT / month
1. Have good quality
2. Lowest price and best quality service
3. We have own factory
4. Export to many countries
Liaocheng Kaituo Construction machinery Co., Ltd--, Liaocheng Kaituo Construction Machinery Co., Ltd is the professional manufacturer of Rock Drilling Tools, Down the Hole Drilling Tools and Mining Tools. Our main products are "KATO" brand of rock drilling tools, Down the hole drilling tools, Mining tools, Air hose for mining and Concrete vibrator series etc. Our products are widely used in cutting mountains, mining, railway, road building and energy supply construction etc. Our company has the advanced scientific research and the production experience, Our products are interchangeable with various products manufactured by Sandvik, Atlas Copco, Kennametal, Betek, etc.
Since it was found, our company proposed core business philosophy "good faith seeking win-win", and ran out of a production, modern management road of "customer-centric, market-oriented, science and technology, with quality and development, to management for efficiency" with the times, blaze new trails, efforts to build a more excellent " KATO" brand.
All staff of our company warmly welcome friends all over the world to cooperate.
| Product Name: |
rock drilling rod |
| Description: |
rock drilling rod
Extension rods are made by hollow drill steels; there are two shapes of extension rods, round type and hexagonal type. |
| Material: |
Alloy steel bar |
| MOQ: |
No MOQ required for testing and trial order |
| Steel grade |
Male-Male Rod, MF Rod |
| Thread type |
R22,R25,R28,R32,R38,T38,T45,T51 |
| Diameter |
25mm-76mm |
| Length |
400mm-6000mm |
Audited Supplier 
){kind=link}