The hook kick is one of the fastest and quickest kicks in jeet kune do and is used mainly as an offensive weapon. It can be launched swiftly without "telegraphing" the delivery.It is a good offensive and countering kick. It lacks power, when compared to the side kick, but it can be used very effectively,It is targeted at your opponent's vulnerable spots.
Against an onrushing attack, as in photo 1, Lee quickly pivots on his rear foot and switches his weight to it,avoiding the rush by moving away from the path of the attack but still maintaining his balance, as in photo 2. He stops the attack with a high hook kick to the face, as in photo3.
Against a cautious fighter who stands from a middle distance, as in photo 1, Lee fakes a right punch to his face, as in photo 2. As the opponent commits himself with his own straight right, Lee parries and almost in one smooth motion, seizes the opponent's right wrist. Then he quickly lets go a hookkick to his groin, as in photo3.
This is referred to as the sequence of attack on completion. After the opponent has lunged, you parry his blow and divert his primary attack.Then you counter while the opponent's body is extended from the lunge or during his act of recover-there is no movement of your opponent's foot during this brief phase.
Against someone using the compound preparation, whereby he steps forward and employs his hand simultaneously, economical trapping is useful to either immobilize or create a reaction so you can punch or kick