Culinary Knife Skills (CKS)

Whether they are almonds, walnuts, peanuts or something else...

What is the best way of chopping them to get a consistent size? Knife skills or equipment?

The question was brought up during a segment of America’s Test Kitchen from 2012:
http://www.americastestkitchen.com/episodes/detail.php?docid=35166

They went over what they thought was the best manual nut chopper, but not how to best process nuts on a larger scale.