With professional open hazelnut tools.

There are a lot of professional open hazelnut put tools on the market, generally for the small pincers, with a small pincer a clamp, hazelnut clamp broken, this action do not use too much force, force heavy, hazelnut kernel will be the whole broken, therefore, as long as a little bit of force, the hazelnut shell can be opened, and then fish out the hazelnut kernel to eat.