Ua hoʻohana ʻia kēia hāmeʻa Helical i ka pahu pahu honua.
Eia ke kaʻina hana holoʻokoʻa:
1) Mea maka 8620H a i ʻole 16MnCr5
1) Hoʻopaʻa ʻia
2) Pre-heating normalizing
3) Huli ʻino
4) Hoʻopau i ka huli ʻana
5) Hobbing kaʻa
6) Heat mālama carburizing 58-62HRC
7) Pahū pana
8) OD a me Bore wili
9) Helical gear wili
10) Hoʻomaʻemaʻe
11) Hoailona
12) Puke a me ka hale kūʻai