This Kon Muay used to counter the fist by throwing the punch and foot at the same time. This technique can be used both of outside and inside.

The attacker walks in and throws the right punch to the defensive’ shoulder while holding up the left-hand guard.

The defensive steps the left foot forwards to throwing the fist and the kick then strikes the right punch to the face and the left kick to the rib at the same time. If the attacker throws with the left punch do the same as above in the opposite directions.