Ko ngā mekameka tōia TL he mea hanga ki te pereti mekameka (te maitai kore waikura kounga teitei me te whakakikorua ki te chromium), te pereti tautoko (te konumohe koranu) me te pou (te maitai koranu), me ētahi atu. Kāore he nekehanga whanaunga i waenga i ngā taura/ngō rapa me ngā mekameka tōia, ā, kāore e puta he āhua rerekē, he takahuri rānei. He ātaahua te āhua o te papa mekameka whakakikorua ki te chromium, ā, he hanganga tino whaitake, he ngāwari, he kaha hoki. He pono, he ngāwari hoki ki te whakahaere, ki te tāuta, ki te wetewete, ki te huihui rānei. He mea tika kia kīia kua tino pai ake te mahi ā-kore-mau nā te mea he rauemi ātete-mau me te pou pine koranu te whakamahinga. He ngāwari te piko o te hua, ā, he iti te ātete, he iti te haruru. Ka taea te whakamahi mō te wā roa me te kore he āhua rerekē, he tuku iho rānei.
1) He kaha/pakari teitei, ā, he tino ātete ki te wera.
2) Kei roto i te raupapa TL te tiakitanga pai rawa atu nā ngā kōhao ārai kua oti te whakaoti ki te diameter o ngā taura.
3) Ka taea e te mekameka tō te urutau ki te tere neke mōrahi o te 40m/hekona.
4) Ina kei te tere neke mōrahi, kaua te pēhanga oro o ngā haruru e neke ake i te 68 db.
5) Kaua te roa o te mahi a te mekameka tō e iti iho i te 1 miriona wā (whakawhitiwhiti).
| Momo | TL65 | TL95 | TL125 | TL180 | TL225 |
| Te papa | 65 | 95 | 125 | 180 | 225 |
| Pūtoro piko (R) | 75. 90. 115. 125. 145. 185 | 115. 145. 200. 250. 300 | 200. 250. 300. 350. 470. 500. 575. 700. 750 | 250. 300. 350. 450. 490. 600. 650 | 350. 450. 600. 750 |
| Whānui iti rawa/mōrahi | 70-350 | 120-450 | 120-550 | 200-650 | 250-1000 |
| H ā-roto | 44 | 70 | 96 | 144 | 200 |
| Roa L | Whakaritea e te kaiwhakamahi | ||||
| Te nui o te poka o te pereti tautoko | 35 | 55 | 75 | 110 | 140 |
| Kōhao tapawhā | 26 | 45 | 72 | ||
He ngāwari te piko o te hua, ā, he iti te ātete, he iti hoki te haruru e puta mai ana. Ka taea te whakamahi mō te wā roa, me te kore e rerekē te āhua, e heke iho rānei. He ātaahua te āhua o te hua, ā, ka ātaahua ake te āhua o te mīhini katoa, ā, ka kaha ake te whakataetae o ngā mīhini me ngā mīhini ki te mākete o te ao.