I am using

G75.1 P100 Q200 U0.200 W0.200 I6.000 K0.0 D6.00 F0.4;

on a Mitsubishi CNC lathe in metric with G95 where D=no of cuts &
I and K confuse me.
Q1: How do I work out my depth of cut?

Q2: Is this the only material remove cycle I can use to cut from right to left with a LH tool?

D = repetative count ( Number of passed you want to be taken)

K = Distance & Direction of relief in the Z axis

I = Distance & Direction of relief in the X axis ( Radius Programming )

This is what is used for a fanuc control
I believe that all is the same except fanuc calls a G73 for the profile cycle

Hoe this helps