The Axe kick is a downward kick that requires a lot of flexibility. In Korean it is called ‘chiko chagi’.
The attacking leg raises upwards from in the inside or outside and is then brought crushing down the centre line of the opponent. The heel is used to strike the opponent in the head, face or chest. It can also be used on someone on the ground.
Power Taekwondo: Axe Kick Tutorial
Taekwondo Sparring: How to use Axe Kick
Tae Kwon Do - Axe Kick