Tube end calibrating device

摘要

The tube end calibrating device employs a widening mandrel which can be inserted in the tube end. This mandrel consists of a traction rod with a widening element on it. The rod cross section increases towards its free end. The device has a handle (2) for use as a hand tool, with an axial drive (1) for the traction rod (4) fitted co-axially to it, having at least two spreading jaws (5) for the widening element, corresponding in the widened position to the internal diameter of the calibrated tube.