A rock breaker, also known as a hydraulic hammer or hydraulic breaker, is a powerful attachment that is commonly used in construction and demolition work to break up and remove hard materials, such as rocks, concrete, asphalt, and other tough materials. These heavy-duty tools are typically attached to heavy machinery, such as excavators or backhoes, and operate using a hydraulic system to deliver high-impact force to break through solid materials.

Rock breakers are crucial tools in construction, mining, and demolition industries, as they significantly improve efficiency and reduce the physical labor needed for breaking through hard materials. They are versatile and capable of handling a wide range of tasks, making them an integral part of various heavy machinery operations.