Atụmatụ gia ikpuru:
1. Na-enye nnukwu mbenata maka anya etiti enyere
2. Ọrụ meshing dị mma ma dị ire ụtọ
3. O nweghị ike ka wiil ikpuru kwọọ wor ma ọ gwụla ma emezuola ụfọdụ ọnọdụ.
Ụkpụrụ ọrụ nke gia ikpuru:
Ogwe abụọ nke gia ikpuru na draịva ikpuru dị n'akụkụ ibe ha; enwere ike iwere ikpuru dị ka helix nwere otu ezé (isi otu) ma ọ bụ ọtụtụ ezé (ọtụtụ isi) gbara gburugburu helix dị na silinda ahụ, gia ikpuru dịkwa ka gia oblique, mana ezé ya na-ekpuchi ikpuru ahụ. N'oge njikọta, otu ntụgharị nke ikpuru ga-eme ka wiil ikpuru ahụ tụgharịa site na otu ezé (ikpuru otu njedebe) ma ọ bụ ọtụtụ ezé (ikpuru ọtụtụ njedebe).rod, yabụ oke ọsọ i nke nnyefe gia ikpuru = ọnụọgụ isi nke ikpuru Z1/ọnụọgụ ezé nke wiil ikpuru Z2.