the cutter proper this change does not require readjustment of the cutting depth the cut off burr is guided through the cutting tube and the hollow adjusting screw while the specification concludes with claims particularly pointing out and distinctly claiming the subject matter which is regarded as the invention it is believed that the invention the objects and features of the invention and furhter objects features and advantages thereof will be better understood from the following description taken in connection with the accompanying drawings in which fig1 is a longitudinal section through a deburring device having an integral tool holder fig2 is a similar longitudinal section but having a tool head that is pivoted to the holder fig4 a and 4b are front views of differently contoured cutting edges of such a cutter proceeding now to the detailed description of the drawings fig1 illustrates a holding rod 1 which is mounted on the outside of a tube to be deburred from the inside rod or shaft 1 projects through the not yet closed gap of the skelp from which a tube or other hollow is being made the head portion 1 39 of holding rod 1 is provided with an obliquely oriented bore 1a whose front portion has a nut threading 1b the.