What attachment would you fit to an excavator for breaking up reinforced concrete?

A hydraulic hammer attachment is specifically designed for breaking up hard materials such as reinforced concrete. This attachment operates with a powerful percussive action that delivers high-impact blows to the concrete, allowing for efficient demolition and fragmentation. The hydraulic hammer is ideal for heavily reinforced structures, where conventional excavating buckets may not provide sufficient force or efficiency.

In contrast, an excavating bucket is more suited for lifting and moving loose materials like soil or gravel rather than breaking concrete. A trench bucket, which is designed for digging trenches, also lacks the necessary impact force needed for breaking through concrete. Lastly, a magnet attachment is generally used for picking up ferrous metal objects and is not applicable to breaking concrete at all. Therefore, the hydraulic hammer attachment is the most suitable choice for the task of breaking up reinforced concrete.