Since the jaws can be set to close at a certain gap, you can set it to whatever type of nutshell you're cracking. The jaws stop closing without crushing all the way through the nut. With this birds-beak type of jaws, you can tweak the gap simply by moving the nut closer to the center.
The ability to control the closing increases the percentage of intact meats you get.
The ability to control the closing increases the percentage of intact meats you get.