Kenpo Budokan Karate: Green Belt: Lessons: 7 – Hammer Lock Extension [locked wing] On February 14, 2016 By masterkenpodragonIn 3 Kyuu - Green Belt, Belt Requirements, Hakko Goshin Jutsu, Kenpo Budokan Karate, Lessons, Self Defense Techniques, Techniques and Forms, Yonko Karate Goshin Jutsu Share this:TwitterFacebookGoogleLike this:Like Loading...