Uhlobo olunjalo lwehelicalizixhobo zangaphakathi idla ngokufuna ukuguqulwa kweprofayili kwaye ukuchaneka yi-ISO6-7, ngaphambi kokuthunyelwa ngakunye, siza kubonelela abathengi ngezi ngxelo zilandelayo ukuze bajonge iinkcukacha zegiya yeringi ye-helical ukuqinisekisa ukuba zonke ziyaqondakala kwaye zilungele ukuthunyelwa.
1) Umzobo weqamza
2)Dingxelo yokumiswa
3)Hingxelo yokutya ngaphambi kokuba utye ubushushu
4)Hingxelo yokutya emva konyango lobushushu
5)Mingxelo ye-aterial
6)Aingxelo yokuchaneka
7)Pimifanekiso kunye nazo zonke iividiyo zovavanyo ezifana ne-runout, i-Cylindricity njl.
8) Ezinye iingxelo zovavanyo ngokweemfuno zabathengi ezifana nengxelo yokufumanisa iziphene