This power tool is meant to cut or break up concrete. It has versatile functions. Rotary hammers are used for doweling and drilling through holes in concrete and masonry walls. Rather than a special clutch, it uses a piston mechanism. To deliver a more powerful hammer blow which makes it possible to drill bigger holes faster. A rotary hammer machine is a powerful tool used in heavy-duty works such as drilling and carving hard material. It is fundamentally used to demolish hard surfaces, drilling holes, placing pins and anchor bolts. This tool is fully utilized in the manufacturing industry and construction industry.