Radial drilling machines are used for a variety of drilling operations on heavy, bulky or odd-shaped workpieces in individual or small batch production. Due to its stable structure layout larger bores may be carried out well. Characteristic for this type of machine is the strong pivotable arm. On it the drilling carriage with the main spindle can be broughtin any desired position on the workpiece. With the aid of a hinged working table almost any drilling operation can be performed.