Na'uran ƙarshen bututun yankan sanyin nau'in kayan aiki ne na musamman da ake amfani da shi don sarrafa bututun ƙarfe, galibi don yanke, naushi, ƙirƙirar da sauran hanyoyin sarrafa bututu. Yana iya yanke bututun ƙarfe daidai da tsayin da ake so, yin nau'ikan nau'ikan tambari iri-iri a kan ƙarshen bututun, da kuma naushi nau'ikan ramuka daban-daban akan bututun. Ana kammala aikin sarrafawa a dakin da zafin jiki ba tare da buƙatar dumama ba.