Description:

Retrievable spear is the fishing workover well which is fished from the fish inner hole and can not only clamp the redom tube but also the tube, and can use with the safe attach, the upper smasher, the accelerator, the tube cutter and so on according to different working requirents. When fishing, the tool goes into the fish chamber and the cavain is compressed which can make some expending force and make the cavain combine with the falling object tightly and bite the falling fish so as to realize fishing. It can demonstrate the work principle and the structure composition, and may carry on disassemble and assemble training .

Details: