Donau Radial-Arm Drills Models DR23, DR30, DR32 and DR50. Donau Radial-Arm Drills Models DR23, DR30, DR32 and DR50. Detailed Sales, Specification & Accessories Catalogues. English & German Text. 26 Pages. Manufacturers: Donau Models: DR23 DR30 DR32 DR50 Contents: Catalog