5-11/16 OD Spear Mandrel, furninshed with 3-1/2 IF (4-3/4

5-11/16 OD Spear Mandrel, furninshed with 3-1/2 IF (4-3/4 OD by 18 Long Fishing Neck) Pin Bottom Connection. f/ 5-11/16 OD Rotating and Releasing Spear