fully enclosed gearbox with all moving parts running in oil bath rigid and well protected carriage slides individual motors with separated controls for machine indexing and grinding wheel spindle electronically adjustable......fully enclosed gearbox with all moving parts running in oil bath rigid and well protected carriage slides individual motors with separated controls for machine indexing and grinding wheel spindle electronically adjustable indexing speed two grinding wheel spindle speeds one pass grinding of roughing and finishing teeth, form c, din 1840, with indicator lamp ability to grind flat and highly curved teeth quick adjustment for chamfering easy set-up of rake angle simple maintenance, and quick set-up times