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Likotoana tsa ho tjheka tse teng setokong IADC127 7 7/8 inches (200mm)
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Li-bits tsa tricone tse theotsoeng IADC127 9 5/8 ” (244.5mm)
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Hlooho e potolohang bakeng sa rig IADC127 9 7/8 ” (250.8mm)
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Likhoune tse 3 tsa li-roller bits IADC127 11 5/8 ” (295mm)
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Likotoana tsa ho tjheka selibeng se tebileng IADC127 12 1/4 ” (311mm)
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Likotoana tsa ho cheka seliba tse etselitsoeng IADC127 14 3/4 ” (374mm)
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Li-bits tsa tricone tse rekisoang ka bongata IADC127 17.5 inches (444.5mm)