3 types of nukite

Nukite symbolises the spear.

So >> connect your fingertips and position your thumb in the centre.

It is not such a strong technique, although there are stories that some sensei could even do Nukite on the Makiwara. Nukite is used to attack soft parts of the body. 

details on all nukite

Should you stretch or bend your fingers...?

Ippon Nukite

The Digi Dojo - Shiyobui - Ippon Nukite

nihon Nukite

The Digi Dojo - Shiyobui - Nihon Nukite

yonhon Nukite

The Digi Dojo - Shiyobui - Yonhon Nukite

how to use nukite...?

Yes, by all means... poke the eyes. It's a given, but true and VERY effective. 

For sure it's a better option than solar plexus (although possible).

here's an application of nukite you haven't thought about yet

Yep. The video thumbnail is not yet giving it away. Sit back and press play 🙂