How to Make a Fist in Karate
- 1
Open your hand with your fingers extended and touching each other. - 2
Separate the thumb from the other fingers. - 3
Bend the four fingers inward and touch the tips to the top of your palm. - 4
Press your thumb over the index finger. Don't allow the thumb to extend past the finger knuckles. - 5
Keep your wrist straight.
Source...