The term 'concrete-breaking tool' can be summarized as a PICKAXE, which is a 7-letter tool used for breaking up hard materials such as concrete. Pickaxes have been used since ancient times and are still used today in construction and mining. They consist of a handle with a metal head that has a sharp point on one end and a flat blade on the other. The PICKAXE is swung to break up the material, and the flat blade is used to pry apart the pieces.