DIN6 shine daidaito nana ciki helical kaya. Yawancin lokaci muna da hanyoyi guda biyu don saduwa da daidaitattun daidaito.
1) Hobbing + nika don kayan ciki
2) Ƙarfin wutar lantarki don kayan aiki na ciki
Duk da haka ga kananan na ciki helical kaya , hobbing ba sauki aiwatar , don haka kullum za mu yi ikon skiving saduwa da high daidaito da kuma high dace .Don babban ciki helical kaya , za mu yi amfani da hobbing da nika hanya . Bayan hawan wutar lantarki ko niƙa, ƙarfe na tsakiya kamar 42CrMo zai yi nitriding don haɓaka taurin da juriya.