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Hammering Vice

Hammering: To strike with a hammer fist

Vice: Head lock or forearm choke


The Ideal attack requires that your opponent starts at your left side (9:00). Your opponent grabs your head and pulls you into a side headlock.

Defense Pattern

1. Right Step Forward toward 12:00 into a Right Closed Kneel Stance while you deliver a Right Inward Hammer Fist to your opponents groin and a Left Inward Hammer Fist to your opponent’s left kidney.

2. Circle your left arm over your opponent's right shoulder and deliver a Left Outward Claw to your opponent's face pushing their head back.

3. Pivot into a Left Forward Bow Stance (facing 6:00) and deliver a Right Heel Palm to your opponent's chin.

4. Perform a Left Front Crossover and Cover Out toward 12:00.

Alternate Names

Though there are similarities between techniques named here the techniques taught in the different branches of the Kenpo family also have notable differences.

We know that each school presents information with a different style and signature that is uniquely associated with their staff and students. Always defer to the instructing staff at your school for guidance should there be any differences in the information being presented.

The American Institute of Kenpo (AIK):

Hammering Vice

Ed Parker American Kenpo Systems (EPAKS)*:

Grip of Death

Tracy Kenpo Systems:


American Kenpo Karate Association (AKKA Karate USA):


*The EPAKS system is copyrighted and all rights are reserved by the Parker Family.

Training Disclaimer

The American Institute of Kenpo (AIK) strongly recommends that all training be overseen by experienced and qualified instructors. Individuals choosing to train without the recommended oversight assume full liability for any and all injuries. In addition, those individuals engaging in training without the oversight of the American Institute of Kenpo’s (AIK’s) certified instructors will be doing so with the understanding and acknowledgment that they are waving subrogation and holding harmless the American Institute of Kenpo (AIK), it's members, and affiliates.

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