E like me ka mīkini, e like me ka manaʻo o ka inoa, ʻo ia ka ʻili i hana ʻia i ka wā o ka hana ʻana.Inā ʻaʻohe o nā ʻāpana i nā koi hoʻopau ʻili a hiki ke hana me ka ʻili i loaʻa ma hope pono o ka hana ʻana, koho ʻia kēia hoʻopau ʻili maʻamau.No ka mea, ʻaʻole liʻiliʻi ka hana ʻana i ka mīkini ma hope o ka hana ʻana.

ʻO kā mākou hoʻopau ʻili maʻamau e pili ana i ka wehe ʻana a me ka deburring.ʻO ka roughness ili i loaʻa ma hope o ka mīkini ʻana he 3.2 μm (126 μin).E like me ka ʻili o ka mīkini e loaʻa nā hōʻailona ʻike ʻia a me nā hemahema o ka ʻili i hana ʻia i ka wā machining.No ka mea ʻo ia ka hoʻopau maʻamau, ʻaʻole loaʻa ka hoʻopau hoʻonaninani hou me ia.