R25 Thread Drill Extension Rod For Quarry / Rock Construction And Mining Drilling

Brand Name:JCDRILLS
Certification:ISO,CE
Model Number:R25
Minimum Order Quantity:5Pcs
Delivery Time:In stock or as order quantity
Payment Terms:T/T, L/C, D/P, Western Union, MoneyGram
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Location: Beijing Beijing China
Address: Room 1407,BuildingA,No.13,Beiyuan Road,Chaoyang District,Beijing,China
Supplier`s last login times: within 1 hours
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R25 Thread drill rod for Thread Drifting and Tunneling on quarry,rock construction,mining drilling


Thread drill rod other names extension rod, Extension drill steel, Extension drill rod, and Extension steel, M/F rod ( Speedrod ) , Produce Hexagonal and round cross sections, Hexagon rods are more rigid, heavier and transfer energy more efficiently, while increasing flushing. Round rods are generally lighter than hexagonal rods and are normally used in extension drilling applications. With the longer steel tending to be larger in diameter, conventional extension steel is characterized by a duplicate thread on each end of the steel.


Drill rod using thread system. Drilling precision can be further improved by using this as the first rod in a normal drill string. Furthermore, since this is a speed rod design it will produce straighter holes and at least 10% higher penetration rate in good rock conditions compared to rod and coupling sleeve combination system.

High strength chromium-molybdenum steel with high fatigue strength and excellent wear resistance

Type: Hex. Drifter Rod, Extension Rod, Speed Rod, MF-Rod

Color: Based on Customer requirements

Material: Tungsten carbide and high strength alloy steel

Processing: CNC milling and proprietary heat treatment process


1. High precision in size and shape

2. Good low temperature toughness

3. Excellent comprehensive mechanical properties

4. High connection strength and sealability

5. Large inside diameter of tool joint

6. High torque resistance

7. High fatigue strength and long fatigue life

R25 Thread drill rod


China R25 Thread Drill Extension Rod For Quarry / Rock Construction And Mining Drilling supplier

R25 Thread Drill Extension Rod For Quarry / Rock Construction And Mining Drilling

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