4-3/4 O.D. Special Shoulder Type Spear Mandrel, with LEFT H

4-3/4 O.D. Special Shoulder Type Spear Mandrel, with LEFT HAND Helix Only, with 20 Long C Dimension, and furnished with 3-1/2 API I.F. Right Hand tool joint box connection. (9681) f/Logan Releasing Spear Assembly