The double pin hitch with drive unit cradle allows the operator to angle the drive up to 90 degrees with greater support given by the cradle so it is easier and more stable when connecting to augers or anchors.
The cradle also acts as a support mechanism when manoeuvring around the work site allowing the drive unit to rest on the cradle, stopping it from swinging around over uneven terrain.
When drilling you should lift the cradle up and away from the drive unit. Do not drill with the cradle resting against the drive unit. This will damage the cradle hitch and your auger drive. See the comparison diagrams below: