-
Giotáin druileála i stoc IADC127 7 7/8 orlach (200mm)
-
Giotáin tríchóin lascainithe IADC127 9 5/8” (244.5mm)
-
Ceann rothlach don rig IADC127 9 7/8” (250.8mm)
-
Giotáin rollála 3 chón IADC127 11 5/8” (295mm)
-
Giotáin druileála tobair dhomhain IADC127 12 1/4” (311mm)
-
Giotáin druileála tobair saincheaptha IADC127 14 3/4” (374mm)
-
Giotáin tricone mórdhíola IADC127 17.5 orlach (444.5mm)