‍‍‍‍Mould saƙa MillWani nau'i ne na'ura mai sassawa, wanda ya kasance na CNC kayan aiki. Yawancin lokaci ana ganin cewa na'urar sarrafawa ita ce na'urar sarrafawa ta CNC ta amfani da ƙananan kayan aiki, babban iko da babban saurin motar spindle. Amfanin engraving inji a engraving, idan aiki kayan tauri ne mafi girma zai bayyana karfi ba daga zuciya. Za a iya ce bayyanar engraving milling inji cika blank tsakanin Lee biyu. Na'urar sassawa na iya sassawa ko milling, yana da inganci mai inganci na CNC kayan aiki. Wannan ra'ayin na'urar zane-zane an fara gabatar da shi kuma an aiwatar da shi ta Jia Iron. A baya wani ya yi tunanin cewa engraving milling inji ne kawai a kan wasu jan ƙarfe, graphite, filastik da sauran kayan mold, don karfe mold ba zai iya yin hannu, mold engraving milling inji ne mafi girma a kan karfe mold.‍‍

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