ʻO ka pōʻai lihi metala ke kaʻina hana o ka wehe ʻana i nā ʻaoʻao ʻoi a i ʻole burr mai nā ʻāpana metala e hana i kahi ʻili malū a palekana. ʻO nā mīkini paʻa paʻa he mau mīkini paʻa e wili ai i nā ʻāpana metala i ka wā e hānai ʻia ai lākou, e wehe koke a me ka maikaʻi o nā palapa kaumaha a pau. Hoʻohana kēia mau mīkini i ke ʻano o nā kāʻei wili a me nā pulupulu e uhaʻi maʻalahi a hiki i nā hōʻiliʻili lepo ʻoi loa.