A wedge is use to seperate two things apart. The wedge will separate, or other wise divide the object in half. The tool has been here for a very long, long, long, long, long, long, long, long, long, long, long, long, long, long, long, long, long time. The anicents used this tool to split objects in parts. I like trains!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! wedges are used to cut wood,hold doors open,etc.