HQ Wireline Core Drill Pipe 1.5M

Wireline coring drill pipe is a method of taking out core from hole bottom without raising drill bit and drilling tool.

After a certain length of drilling does not exceed the length of the inner core tube, stop drilling, pull from the ground under the fine steel wire rope in the drill pipe, reach the hole bottom, grasp the fishing head of the core tube, and then lift it up to separate the inner and outer core tubes, lift the speech and action tubes from the drill pipe to the ground and take out the core