Quote Originally Posted by Chaz View Post
Sorry, my question was unclear.

I understand when I need CW and when CCW. What 'setting' tells the spindle to rotate CW or CCW depending on the tool choice?
There's not a setting for that. You'll need to ensure however you produce your G-code does the spindle direction setting.

You could allocate blocks of tool numbers that rotate certain directions, then use the M6 macro to check and set spindle direction depending on tool number.