R25-Hex 25-R25 Flushing Hole 8.6mm R25 Drifter Rod

Description:
Thread drill rod is made with best quality hollow carbon steel bar
We usd advanced production technology CNC and hollow drill steel processing by Boring Method ensuring quality reliability, optimize processing procedure, entirely automatic threading equipment to finish the thread naturally and reduce the concentration of stree.
Shape once of whole heat-treatment ensures long lifespan.
The hollow holes are usually named flushing hole, used for transmitting water or air during drilling.
The threads can be used for connecting coupling sleeves, shank adapters, coupling or bits.

 
Applications
• Underground Mining
• Tunneling

 
Competitive Advantage

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

Specification