No origin is documented for this clip in the facts supplied, and no source work, performer or year is identified for it. It is supplied only with a title describing repeated hammer knocking, a short duration of just over three seconds and a politics category that does not describe the sound itself. On a soundboard, a clip of this kind is used as a label: creators searching for hammer knocking can find it by that description, place it in building, fixing or DIY edits, and reuse the same short clip across different videos without needing any background for the sound.