(1)cutter adopts hydraulic feed, cutting is balanced, reliable, easy to control
(2)cutter can cut sliding pipe string, and also cutting over joint , very flexible and convenient
(3)one group of hydraulic external cutter exchanges different size combination pistons, can cut several kinds of tubing and casing, suitable range is wide
(4)after cutting fishes and can take them out the ground together, avoid in fishing work again,work efficiency is high, but should note when diameter of cut pipe string is different , effection point of loading on the blade is different, so the carrying capacity of the same group of blade for different pipe string is different
(5) circle arc of blade trailer sits in female cambered surface of,can bear cutting feed loading , reamerpin cant be cut
(6)hydraulic external cutter is a unreleasing cutting tool, so operation must be Careful , try to be successful to cut once
(7)wipe screw thread grease on each connection of hydraulic External cutter ,not only avoid in thread gluing, but also Promote sealing pressure