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API Hoobkas ntawm Roller Cone ntsis IADC637 3 7/8 "(98mm) hauv Tshuag
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Khawm khoom IADC637 7 7/8 "(200mm)
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API tricone pob zeb khoom IADC637 9 5/8 "(244.5mm) hauv Tshuag
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TCI tricone ntsis IADC617 6 1/2 "(165mm) rau drilling rig
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API tus neeg muag khoom ntawm cov pob zeb tob tob IADC537 9 5/8 "(244.5mm)
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API TCI khawm ntsis IADC537 9 7/8 "(250mm) rau pob zeb zoo drilling
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Rotary Button IADC537 3 7/8 "(98mm)
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Tricone khoom IADC537 4 5/8 "(118mm)
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Tricone laum khoom IADC537 4 3/4 "(120.6mm)
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API tricone pob zeb ntsis IADC537 5 1/4 "(133mm)
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API pob zeb laum ntsis IADC537 5 1/2 "(139.7 mm) rau qhov zoo
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API laum khoom IADC537 5 5/8 "(142.9mm)