The milling tool is mainly used in drivepipe window. There are two types:Unitary Drill Hinge Milling Cone and Double Shaft Drill Hinge Milling Cone.
Features:
ⅠThe Guide Inclined Angle is big and the grind Packer-whipstock seldomly happen. It can not be easy to form circular bead. It helps saving the time.
ⅡGood efficiency. The window is smooth, being convinient for tubular column pass. |