Stepper question

I have two oldish single stack stepper motors. One is labeled 2.9V 3.3A the
other 3V 1.7A. Am I correct in thinking that the 3.3A motor will have almost
twice the torque of the 1.7A motor?

The labels say that tis is the voltage and current per phase. What's a
phase?

Mariss' white paper on steppers suggests that a "half winding" connected
motor delivers twice as much power as a "full winding" connected motor. He
also says that for a "full winding" connected motor the drive current should
be set to half the "rated unipolar current". Is this the current per phase
that is shown on the label?

Thanks in advance,

Dave.