ʻO DIN6 ka pololei o kamea helical kūloko. ʻO ka maʻamau, loaʻa iā mākou ʻelua ala e hoʻokō ai i ka pololei kiʻekiʻe.
1) Hobbing + wili ʻana no nā mea hana o loko
2) Hoʻokuʻu mana no nā mea hana o loko
Eia nō naʻe, no nā mea helical liʻiliʻi liʻiliʻi, ʻaʻole maʻalahi ka hana ʻana i ka hobbing, no laila e hana mākou i ka mana skiving e hoʻokō i ka pololei kiʻekiʻe a me ka hana kiʻekiʻe. Ma hope o ka skiving a i ʻole ka wili ʻana, ke kila pahu waena e like me 42CrMo e hana i ka nitriding e hoʻonui i ka paʻakikī a me ke kū'ē.