Hassett's Jiu Jitsu ClubWilliamstown, New Jersey REQUEST MORE INFORMATION Contact Hassett's Jiu Jitsu Club in Williamstown today! 1161 S Black Horse Pike,Williamstown, New Jersey 08094 (856) 218-8333 Request More InformationName*Email* Phone*Select a LocationWhich location are you interested in training at?SewellWilliamstownNameThis field is for validation purposes and should be left unchanged.