KSQ Technologies (Beijing) Co. Ltd |
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1.Spiral drill pipes Design feature: overlay spiral. It guarantees
big torque, quick slagging, and clear hole forming. Besides, the
drill bit will hardly get stuck.
Application: soft coal bed, and other formation similar to coal bed.
Model | Taper Degree | Drilling Road Length | Shank Size |
Hex.19mm | 7°,4.8°,12° | 0.4m-4.0m | 83mm,108mm |
Hex.22mm | 7°,4.8°,12° | 0.8m-6.0m | 83mm,108mm |
Hex.25mm | 7° | 0.8m-6.0m | 108mm,159mm |