-
API praebitor terebrarum perforandarum saxorum profundorum IADC537 9 5/8″ (244.5mm)
-
Terebra API TCI IADC537 9 7/8″ (250mm) ad puteos saxorum duriorum perforandos
-
Terebra rupium triconica IADC417 8 1/2″ (215.9mm)
-
Officina API terebrae triconicae TCI IADC617 5 5/8″ (142.9mm)
-
Terebra triconica TCI IADC417 17.5″ (444.5mm)
-
Terebra puteorum API IADC417 12 1/4″ (311mm) ad saxum durum perforandum
-
Officina API conorum cylindrorum saxalium IADC437 8.5″ ad perforandum
-
Terebra triconica API IADC437 6″ (152mm) ad puteos perforandos
-
Terebra triconica TCI IADC447 8 1/2 unciae (215.9 mm)
-
Terebra rotatoria IADC447 6.5 unciae (165mm)
-
Terebra saxorum trium conorum IADC517 10 5/8″ (269mm)
-
Terebrae triconicae rotatoriae IADC517 9 7/8″ (250mm) ad saxum durum