Product name: Extention T51Thread extention rod
Product category: Drilling rod
Threaded Connection: R22, R25, R32, R38, T38, T45, T51
Length: 1830mm
KINGDRILLING thread drill rods are made of high-intensity alloy
steel. All the trails and threads are formed by high precision CNC
machines. The thread is induced by induction hardening, then fast
heating and cooling. The precision temperature controlled heat
treatment equipment ensures the service life of the drill rod,
improves the mechanical properties of the drill rod,
Holistic carburization increases the carbon content in the outer
layer of drill rod, and hardened outer steel body. The solid thread
can fit perfectly with the inner wall of the drill bits,and
complete various roadway tunneling, underground mining and open pit
drilling task in complex rock and terrain rough drilling with high
precision and high efficiency .
KINGDRILLING thread drill rod parameters:
| THREAD | Length | Diameter |
| mm | Foot | mm | inch |
| GT60 | 3660 | 12" | 60 | 2 3/8" |
| 4265 | 14" | 60 | 2 3/8" |
| 5485 | 18" | 60 | 2 3/8" |
| 6095 | 20" | 60 | 2 3/8" |
| GT60 | 4265 | 14" | 64 | 2 1/2" |
|
|
| GT60 | 4265 | 14" | 60 | 2 3/8" |
|
|
|
| GT60 | 1600 | 5" | 87 | 3" |
| 4265 | 14" | 87 | 3 1/2" |
| 5335 | 17" | 76 | 3" |
|
| GT60 | 4265 | 14" | 87 | 3 1/2" |
|
|
Order Guide: Thread type + Diameter + length
KINGDRILLING thread drill rod advantages:
1.High quality: High carbon steel with advantaged procession
2.Competitive price:Cheap price because of direct factory price.
3.Problems solve ability:This ability comes from our rich
experiences at the drilling tools industry.
4.Fast delivery time:usually it takes 25 days for production.Only 2
or 3 days if we have stock of your request size.
5.Best quality control:We have our own experienced QC team,there
will be strict inspection and testing for every order before
shipping out.
6.OEM,ODM service:your own request about product will be served
well.
7.Best after service:We will go to your place to check and solve
the problems if there.
KINGDRILLING drill rod features:
1. Hardening treatment of the part’s surface:with longer operating
life and excellent anti-wear properties.
2. Structural optimization:Strengthen the structural strength, easy
to operate
3. Superior performance:Stable and reliable performance, high
drilling speed
FAQ:
1. What is a drill rod?
A drill rod is a form of bar stock machined to produce tools such
as drill bits, taps, dowel pins, shafts, reamers, files, punches
and hammers. It's soft enough to shape but can be heated up to
revert back to the hardness. Drill rods are manufactured from tool
steel that has been ground to a tight tolerance diameter.
2.What is pin and box thread?
A box and pin joint, also known as tool joint, is a component of
drilling pipes that act as a coupling element to make up the drill
string. The joint connects with the pipe by welding or with the
help of a conical thread.
3. How does drill pipe work?
Drill pipes are durable steel pipes that conduct the force to the
drill bit. In many cases the drill pipe turns the drill bit, which
cuts into the rock until it reaches the deposits. The last drill
pipes before the drill bit are often nonmagnetic drill collars,
particularly in horizontal drilling.
4. How do you harden a hardening drill rod?
HEAT TREATMENT Sections smaller than ¼” heat to 1450°-1475°F and
hold until heated through. For larger sections, preheat to 1200°F,
the raise to 1450°-1500°F to hardening temperature, hold one-half
hour per inch of cross section. Quench in oil at 125°-150°F and
TEMPER IMMEDIATELY.
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