-
API trije kegels bit IADC537 11 5/8 "(295mm) foar hurde put
-
Rotearjend tri-kegelbit IADC537 12 1/4 "(311mm)
-
Metaal ôfsletten Far Eastern rotsboarring IADC537 13 5/8"(346mm)
-
API tricone drill bit IADC537 14 3/4 ″ (374mm) foar hurde rock
-
Tricone roller bit boarring IADC537 15.5 "(393.7mm) foar djippe put
-
TCI drilling bit IADC537 16" (406.4mm)
-
Tungsten Carbide Tricone bit IADC537 17.5" (444.5mm)
-
API & ISO tricone roller bit IADC537 26" (660.4mm)