NDS Drilling Supply

A. Thread name for box going to drill bit.

B. Length of the flat.

C. Distance across the flats.

D. Outside Diameter of the stabilizer.

E. Outside Diameter of the neck of the stabilizer.

F.  Length of the neck of the stabilizer.

G. Overall length of the stabilizer.

H. Distance from the drill rod box shoulder to the beginning of the flat.

I. Thread name for box going to the drill rod.