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API burg'ulash uchlari IADC537 5 5/8″ (142.9 mm)
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Yuqori tezlikdagi volfram karbidli burg'ulash uchlari IADC537 5 7/8″ (149 mm)
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Trikonli tosh uchlari IADC537 6 dyuym (152,4 mm)
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Aylanuvchi trikonli bit IADC537 6 1/4 dyuym (159 mm)
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TCI trikonli tosh uchlari IADC537 6 3/4″ (171 mm)
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API tugmachali bit IADC537 6.5 dyuym (165 mm) chegirmali narxda
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TCI toshli uchi IADC537 7 1/2” (190 mm)
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API zavod trikonli bit IADC537 7 5/8” (193.7 mm)
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TCI trikonli bit IADC537 7 7/8 dyuym (200 mm)
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Volfram karbidli qo'shimcha uchi IADC537 8 1/2″(215.9mm)
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API tugmachali tosh burg'ulash uchi IADC537 8 3/4″(222.2 mm) chegirmali narxda
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Qattiq tog' jinslari uchun IADC537 9 1/2″(241 mm) TCI burg'ulash uchi