Mata huinga mata taimana matua kua whakaritea Nmlc, Bq, Hq, Nq

Ingoa Waitohu: Te Rawhiti Tawhiti
Tiwhikete: API me te ISO
Tauira Tau: BQ NQ HQ PQ NQ3 HQ3
Te rahinga iti rawa o te ota: 1 wahi
Ngā Taipitopito mōkihi: Pouaka Papariki
Wā Tukunga: 5-8 ngā rā mahi
Painga: Te Mahi Tere Teitei
Te Wā Pūtāhui: 3-5 tau
Taupānga: Puna Hinu, Hau Taiao, Geothermy, Keri Puna Wai

Taipitopito Hua

Ataata e pā ana

Putumōhio

IADC417 12.25mm tricone bit

Whakaahuatanga Hua

BQ-2

Ko te mata taimana kua whakatakotoria ki te mata he mea hanga mai i tētahi paparanga kotahi o te taimana tūturu kua whakatakotoria ki runga i te mata o te karauna o te mata me te anga mārō.
Ko te mata taimana whakatakoto mata te mea e tino taunakitia ana mō te keri i ngā anga ngohengohe ki ngā anga mārō. I te nuinga o te wā, ka taea e te mata taimana whakatakoto mata te whakarato i te tere uru pai.
Hei whiriwhiri i te mata tika mō ngā hanganga ka keria, me whai whakaaro tātou ki ēnei āhuatanga: te rahi o te taimana, te kounga o te taimana, te hoahoa o te kōtaha.

Te mātāpono mō te whiriwhiri i te rahi o te taimana--ka pakeke ake ngā kohatu, ka iti ake te rahi o te taimana.

Ngā kōtaha o te mata o te mata o te mata:
Haurua-porowhita: e whakamahia ana i roto i te mata matua me te matotoru o te kerf o te mata i raro i te 11mm. Ka taea te keri i ngā momo hanganga. He roa te ora o te mata matua me te kōtaha haurua-porowhita, ā, ka taea te karo i te kino; ahakoa he matotoru kerf o te mata neke atu i te 11mm me te kōtaha haurua-porowhita ka taea te whakamahi ki te keri i ngā hanganga whakakoi.
Kōtaha takahanga: ko te matotoru o te kerf o te mata matua neke atu i te 11mm te tikanga he momo kōtaha tēnei. Ka taea e te mata me te kōtaha takahanga te whiwhi i te tere werohanga teitei me te pumau pai i te keri. Heoi, kāore i te tūtohutia mō ngā hanganga pakaru tino koi. Mena he kōtaha takahanga te kerf o te mata matua o te mata iti iho i te 11mm ka taea te tere ake te keri me te pumau ake o te keri.

IADC417 12.25mm tricone bit

Whakatakotoranga Hua

Rahi Taimana

Hanganga i Keria

10/20 SPC*

Hanganga ngohengohe

20/30 SPC

hanganga ngawari ki te hanganga waenga

30/40 SPC

hanganga waenga

40/60 SPC

Te hanganga waenga ki te mārō

< 60/80 SPC

Te hanganga tino uaua

* Ko te SPC he whakarāpopototanga mō te Kohatu mō ia Karati
** Ko te 40/60 te rahi taimana paerewa a Forsun mō te mata matua taimana tūturu
*** Kei te wātea ētahi atu rahi e ai ki te tono

Ture mō te whiriwhiri i te kounga taimana--ko te pakeke ake o ngā kohatu, ko te pai ake o te kounga taimana.

Te Tohu Taimana Hanganga i Keria
He Taumata Hanganga ngohengohe
Tohu AA Te hanganga ngawari ki te hanganga waenga
Tohu AAA Te hanganga uaua ki te tino mārō
* Ko te tohu AA he tohu taimana paerewa Forsun e whakamahia ana i roto i te mata matua taimana taiao.

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