-
Caput rotans pro machina IADC127 9 7/8” (250.8mm)
-
Terebrae rotatoriae tres coniformes IADC127 11 5/8" (295mm)
-
Terebrae puteorum profundorum IADC127 12 1/4" (311mm)
-
Terebrae puteorum ad mensuram aptatae IADC127 14 3/4" (374mm)
-
Tesserae triconicae IADC127 17.5 pollices (444.5 mm) in grosso
-
Terebrae tricônicae saxorum IADC137 6 unciarum (152 mm) ad puteos perforandos
-
Fresae dentatae ad puteos perforandos IADC215 17.5 uncias (444.5 mm)
-
Terebrae API Tricone ad saxa perforanda IADC215 12 1/4" (311mm) pretio imminuto
-
Terebra API triconica IADC215 8.5 unciarum (215.9 mm) venalis
-
Terebrae API fabricatae IADC216 4.5 unciae (114mm)
-
API terebrae machinae perforatoriae IADC216 5 3/4 unciarum (146mm)
-
Terebrae dentatae fresatae IADC216 6.5 unciarum (165mm) ad puteos perforandos