Abstract: A removal apparatus of a threaded post contains: a drive rod, a connection element, an actuation element, and a slidable sleeve. The connection element includes a locking groove and a notch. The actuation element includes a fitting fringe corresponding to the connection element, a cylindrical neck having a diameter less than a diameter of the fitting fringe, and an engagement disc having a diameter more than the diameter of the cylindrical neck. The diameter of fitting fringe is equal to a diameter of the connection element. The slidable sleeve includes a coupling space having a diameter equal to the diameter of the fitting fringe and the diameter of the connection element. The slidable sleeve is slid so that the coupling space abuts against the fitting fringe and the connection element, and the engagement disc is engaged in the locking groove.

Abstract: A device for cutting a precise angle into the end of a tube. The device includes a tool having a pilot member insertable into the end of the tube, a plurality of spaced apart cutting members for engaging the end of the tube, and a body rigidly joining the pilot member and cutting members to one another. A drive mechanism is attached to the body for selectively rotating the tool.