Stepper specs and their meanings?

I'm relatively new to the cnc concept and was shopping around for steppers. I kniw that holding torque is more or less the "strength" of a stepper and that the voltage and amperage are used in power supply consideration. But I'm a bit lost with inductance and what all these specs mean on different steppers.

IE; what does a high vs low inductance rating do for steppers.

I see steppers with huge torque ratings but only a fraction of the amp rating on lower torque steppers. Are these just...

Stepper specs and their meanings?