How to break a board with a hammer fist at Brooklyn karate school Part 2

Karate students Christian, Jordan, Nicholas, Benjamin, Sky, Damon, and Daniel use hammer fists to do power breaks. This video is from Urban Martial Arts BoardBreaking Extravaganza Fundraiser on January 22, 2010. We raised over 400 for the American Red Cross Haiti Earthquake Relief Fund Urban Martial Arts is a mixed martial arts studio based in the Ditmas Park section of Brooklyn, New York, NY. We offer classes for children, teens, and adults. Building on a foundation of American karate, we incorporate elements of boxing, kickboxing, MMA, grappling, Brazilian JiuJitsu, and selfdefense. Visit us online at or call us at 7182875500 for more information.