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Quick Details

Use: Well Drilling
Processing Type: Forging
Material: High Manganese Steel
Certification: ISO
Machine Type: Drilling Tool
Type: drill rod
Model Number: C,W,TW
Brand Name: Hargrand
Place of Origin: China (Mainland)

Specifications

Product Description
Wire-line coring drill rod is used to fish the rock core from drill pipe without tripping out it. It is widely used thanks to its simple structure, reliable performance and low labor intensity. It is suitable to wire-line coring in deep well. The adoption of ends upset greatly enhances the strength among joint parts

Q series drill rods grade

grade                                   performance                                  rods material                                 description

  A                                          standard                                     30CrMnSiA                                    tempering

  B                                          superior                                      XJY850                                         tempering

Q series drill rods specifications
                                                                                                                                                      drilling depth
 Size                 outside diameter*thickness                     length                       bits size                    A                       B

 BQ                              55.6*4.8                                     3m                            BQ                      1600m                1800m  

 NQ                              70.1*5.05                                   3m                            NQ                      1400m                1500m
 
 HQ                              89*5.6                                       3m                             HQ                     1000m                 1200m
 
 PQ                              114.3*6.35                                 3m                             PQ                      700m