None

In this case, an ascent is not completed.

Incremental

In this case, the ascent is done using an incremental distance provided by the user in the "Ascent" field. The ascent is done according to the feed rate provided by the user in the "Feed Rate Speed" field of the step concerned.

Up to previous step

In this case, the ascent is done using an absolute value specified by the preceding step. The ascent is done according to the feed rate provided by the user in the step's "Feed Rate" field.

Up to Bar Diameter

In this case, the ascent is done using an absolute value specified by the milling start of the parting. The ascent is done according to the feed rate provided by the user in the step's "Feed Rate" field.