1) Ka hoʻopaʻa ʻana i 8620 mea maka i loko o ka pā
2) Hana ʻia ma mua o ka wela (Hoʻomaʻamaʻa a hoʻopau paha)
3) ʻO ka huli ʻana o ka Lathe no nā ana ʻākeke
4) Hobbing i ka spline (ma lalo o ke wikiō hiki iā ʻoe ke nānā pehea e hob i ka spline)
5)https://youtube.com/shorts/80o4spaWRUk
6) Carburizing wela lapaʻau
7) Ho'āʻo