Te pakari o te whati e pa ana ki te rahi o te witi me te ihirangi cobalt.

I te wa e pa ana tetahi rauemi ki te ahotea o waho, ka puta tenei ki te awangawanga miihini.I raro i enei ahuatanga, ko te kaha me te ngawari o te rauemi e tohu ana i te kaupapa mo te kaupapa o te uaua.I etahi atu kupu, kua tautuhia te pakari ko te kaha ki te aukati i te pakaru, te pakaru ranei o te tipu.Ka whakamahia te "Palmqvist Tikanga" ki te whakatau i te uara pakari, KIC.

Me whakapūtā koa e whai ake nei mō te ota:

*Ngā Rawa Waea, Wao Wao Iti.Waewa Waenga Waehere.Waro Teitei.Stainless Steel.Brass.Aluminium.Iron.Optimum with Code of Materials.

*Te ahua o te Mahunga, tohua mai te wa e mau ana te upoko me te horoi.

*Tiwiri kowhao, tohua mai i te wa e whakamahia ana mo te wiri tuwhera.

*Tautoru tapatoru, tohua te diameter waea ina whakamahia mo te tapatoru.

*Kaore i te paerewa paerewa, whakapirihia nga pikitia, tauira ranei ina whakamahia mo te miihini kore-paerewa.

Nga patai noa mo te whakamahi i te tiu me te pokepoke nati:

1. Ko te kaimahi rangatira te wheako o te pokepokea ai me te hoahoa hanganga, te tātari i te take o te tohatoha koretake o te ōwehenga o te ahotea mate me te huringa.

2.Ko te ma o te pokepokea ai, ko te mutunga o te poka o roto kaore e ranea.

3.Ko te rigidity o te anga ringa rauemi, te ātete wera, me te pakeke maimoatanga wera he pohehe.

4.I roto i te tikanga ki te whakaora i te utu o te hanga, i whiriwhiria e ratou te kounga tungsten carbide maitai me te tokotoko waea, ngā koranu me te tahae rauemi whao wira nui he pohehe.

5.Ko te collider kaore e tika ana, me te kore e whakakapi i nga hinu me te tirotiro i te miihini mo te wa roa.

6.Ko te kaimahi rangatira o te whakatikatika me whai taumata hangarau teitei.