For engraving and 3D small propeller parts
Click image for larger version. 

Name:	Golf Medals email.jpg 
Views:	924 
Size:	66.7 KB 
ID:	19328Click image for larger version. 

Name:	RC-EDF-64mm-Adf64-300XL-plus-5250kv-Brushless-Outrunner-Motor-8-Blade-Fan.jpg 
Views:	891 
Size:	31.9 KB 
ID:	19329

On my CAM simulations the surface finishing of the propeller to be accurate needs like 0.01-0.02 mm of resolution


Those are some jobs i would perform