1. Ua like ke ʻano o ke kaulahao me ke kolo o kahi pahu i hana ʻia me kekahi helu o nā hono. Hoʻohuli manuahi ʻia nā hono o ke kolo.
2. ʻO ke kiʻekiʻe o loko a me ke kiʻekiʻe o waho a me ka pitch like ke ʻano o ke kaulahao like akā hiki ke hana ʻia ke kiʻekiʻe o loko a me ka radius kūlou R e like me nā kikoʻī like ʻole.
3. ʻO kahi hui kaulahao ʻāpana he papa kaulahao hema-ʻākau a me kahi uhi i luna. Hiki ke wehe ʻia kēlā me kēia hui kaulahao i mea e maʻalahi ai ka hōʻuluʻulu ʻana a me ka wehe ʻana me ka ʻole o ke kaulahao. Hiki ke hoʻokomo ʻia nā kaulahao, nā paipu aila a me nā paipu kinoea i loko o ke kaulahao kauō ma hope o ka wehe ʻia ʻana o ka papa uhi.
| Hoʻohālike | H × W o loko | HXW waho | Kikowaena | Radius Kūlou | Kikowaena | Ka lōʻihi i kākoʻo ʻole ʻia | Kaila | ||
| B1 | B2 | B3 | |||||||
| TZ-18.18 | 18x18 | 23x31 | 12 | 6.5 | 6 | 28.38.48 | 30 | 1.5 | Hiki ke wehe ʻia nā poʻi hapalua a me lalo |
| TZ-18.25 | 18x25 | 23x38 | 19.5 | 6 | 6 | 28.38.48 | 30 | 1.5 | |
| TZ-18.38 | 18x38 | 23x51 | 25 | 6 | 6 | 28.38.48 | 30 | 1.5 | |
| TZ-18.50 | 18x50 | 23x63 | 30 | 7 | 7 | 28.38.48 | 30 | 1.5 | |
I ke koho ʻana i nā kaulahao uwea, pono e akahele i ke koho ʻana i ke ʻano o ke kaulahao/mea lawe a ʻo ka lua, ʻo ke ʻano o nā uwea e hoʻokomo ʻia i ke kaulahao, a ukali ʻia e ka hoʻonohonoho ʻana o nā uwea i loko o ke kaulahao. Loaʻa i ka hapa nui o nā mea hana kaulahao nui kekahi mau palapala e hōʻike ana i ke koho ʻana a me ka hoʻonohonoho ʻana i kā lākou mau kaulahao e hōʻoia i ke ola lōʻihi loa o ke kaulahao a me kona mau mea. ʻO ka hahai ʻana i kēlā mau alakaʻi i ka leka e hōʻoia i nā ola maʻamau i loko o ka 10 o nā miliona mau pōʻaiapuni, akā e hana pū i nā kaulahao ākea loa i hiki ʻole iā mākou ke hoʻokomo maʻalahi i kā mākou mau noi.