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Kaiwhakarato mō ngā mata porowhita kone roera IADC216 5 5/8 inihi (143mm)
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Ngā poro porotaka hiri IADC216 5 7/8 inihi (149mm)
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Ngā mata Tricone kei roto i te taonga IADC216 6 3/4 inihi (171mm)
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Mata tīri hurihuri IADC216 7 7/8 inihi (200mm)
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Kaiwhakarato mata hurihuri IADC216 10 5/8 inihi (269mm)
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Hokona ngā mata keri IADC216 17.5″ (444.5mm)
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Ngā mata Tricone IADC217 4.5 inihi (114mm) mō te keri poka hohonu
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Momo kōne roera hiri API mō te keri IADC217 5 7/8 inihi (149.2mm)
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Kaiwhakarato moka API IADC217 8 3/4 inihi (222.2mm)
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ngā mata keri rarawe IADC217 17.5 inihi (444.5mm)
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Te wheketere o te mata tricone niho maitai IADC114 17.5 inihi (444.5mm)
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Ngā mata keri mono sima IADC127 4 3/4 inihi (120mm)