Wrist throw You must first complete Introduction before viewing this Lesson The third lock is the wrist throw. Where locks one and two are so-called inside/outside locks, this lock is a outside/inside lock. You twist the wrist outward. Lesson tags: joint lock, selfdefense, wrist throw, yellow belt Inside/outside wrist lock Figure-4 lock Back to: 01. Chongmukwan Beginner > Locks and throws