ʻO kēlā ʻano helicalmea hana kūloko ʻO ka maʻamau, pono ka hoʻololi ʻana i ka ʻaoʻao a ʻo ka pololei ʻo ISO6-7, ma mua o kēlā me kēia hoʻouna ʻana, e hāʻawi mākou ma lalo o kēia mau hōʻike i ka mea kūʻai aku e nānā i nā kikoʻī o ke apo helical e hōʻoia i ka maopopo o nā mea āpau a maikaʻi hoʻi e hoʻouna.

1) Kaha kiʻi pehu

2)Dhōʻike manaʻo

3)Hhōʻike ʻai meaʻai ma mua o ka meaʻai wela

4)Hhōʻike ʻai meaʻai ma hope o ka meaʻai wela

5)Mhōʻike kikowaena

6)Ahōʻike pololei

7)Pnā kiʻi a me nā wikiō hoʻāʻo āpau e like me ka runout, Cylindricity etc.

8) Nā hōʻike hoʻāʻo ʻē aʻe e like me ke koi o nā mea kūʻai aku e like me ka hōʻike ʻike kīnā