6-1/2 OD Special Adaptor Sub furnished with Special Mud Sav

6-1/2 OD Special Adaptor Sub furnished with Special Mud Saver Valve section per MSV Print (REV A) with 4-1/2 FH Pin. 24 Shoulder to Shoulder Length.f/Logan 11.3/4 OD Special Releasing Drilling Spear for 13.3/8 Casing