| ʻO ka mea hana liʻiliʻi maʻalahi i ka notching | 
| ʻO nā mea hana notching i hana ʻia me ke kila kila kiʻekiʻe me ka hoʻoheheʻe maikaʻi ʻana a me ka hoʻomaʻamaʻa ʻana i ka wela wela e paʻa ai ka ʻōpala | 
| ʻO ka mea hana i hana ʻia me ka hao maikaʻi loa, ʻo ia ka lōʻihi, ke kūpaʻa haʻalulu a maʻalahi ke mālama. | 
| ʻO ka laulā maʻamau o ka notching he 6mm, hiki ke hoʻololi i ke kiʻekiʻe mai 0-19.50mm a hiki i ka laulā ke loaʻa ke koho mai 3mm a i ʻole 5mm, hiki ke hana ʻia ka nui e like me kāu noi. | 
| He kūpono no 3P(1.07mm) a ma lalo o ke kānāwai ʻoki a me ka lula crease |