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Hiri Hiri Hiringa bts IADC126 9 7/8 inihi (250mm)
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Kaiwhakarato moka drill Tricone IADC126 12 1/4 inihi (311mm) mo te keri poka
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Moka mo te keri poka IADC127 3 7/8″ inihi (98.4mm)
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API tricone keri IADC127 4 5/8 inihi (118mm) hei hoko
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wheketere paraka hiri IADC127 6 inihi (152mm)
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Moka keri poka hohonu IADC127 12 1/4” (311mm)
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Moka tricone taimana IADC216 7.5 inihi (190mm)
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wheketere paraka Tricone IADC216 9 7/8inihi (250.8mm)