ProGrind grinders are available as 3, 4 or 5 axis models to fit a wide variety of applications.  Originally built for tool grinding, they have found applications in many industries.  They can be supplied for manual or automatic loading.

Above - ProGrind III
Four axis grinder combines a rotary axis on the work head with .0001 degree resolution and three linear axes with .000010" resolution for precise grinding of a wide variety of parts and cutting tools.  More info

ProGrind V is for grinding more complex parts.  Shown above is a five axis grinder with a carousel loader for grinding optical lenses. 

Note: there is no software currently available for grinding cutting tools on the five axis grinder.