Micro rotary swaging is introduced as micro forming process for homogenous and compound parts. Application fields are seen within surgery, mechatronics, micro drives etc. The specific process limits are addressed. Demonstrator parts are shown to give an impression of the process capabilities. These are a combined laser melt/plunge swaged ball geometry and joined parts of different materials. The use of micro rotary swaging offers mostly the same advantages that are known from the macro world. Keywords: