-
Darnau dril rholer tricone IADC517 6 1/4″ (159mm)
-
Darnau botwm roc wedi'i selio TCI IADC517 6 1/2″ (165mm) ar gyfer drilio'n dda
-
did tricone TCI IADC517 7 1/2″ (190mm)
-
Darn Tricôn Ffynnon Ddwfn IADC517 7 7/8 modfedd (200mm)
-
API Tricone Bit IADC517 8.5 modfedd (215.90mm)
-
Bit drilio API Tricone IADC517 8 3/4 modfedd (222mm) mewn stoc
-
Darnau Rholer Tricone IADC517 9.5 modfedd (241mm)
-
Darnau tricone cylchdro IADC517 9 7/8″ (250mm) ar gyfer craig galed
-
Darn roc tri chôn IADC517 10 5/8″ (269mm)
-
Darn roc cylchdro IADC517 11 5/8″ (295mm)
-
Bit tricone cylchdro IADC517 12 1/4″ (311mm)
-
Did tri chôn IADC517 13 5/8″ (346mm)