Dh's hand is next to the knife blade so you can see where it is at. The knife is longer than the width of the box. For the frozen beans a serrated bread knife works best.
End view of the box the box holds about 4 gallons of fresh beans.
To simplify this process we use a green bean board! We bought frozen beans for
our soup, they came unsnapped so dh chopped them into bite sized pieces.