4-1/32 O.D. Special Flush Type Spear Mandrel, with Standard

4-1/32 O.D. Special Flush Type Spear Mandrel, with Standard Helix and Bottom Nut Threads, and furnished with LEFT HAND 2-7/8 API I.F.Box Connection with 1-1/2 ID. (9681) f/Logan Releasing Spear Assembly