Cleaned up PDF image of the Atlas factory drawing M6-31. Drawing dated 5-??-37, revised and approved 6-26-62, rev M. Drawing title "HEAD SPINDLE". The original drawing image quality is poor and a number of guesses were made. The original image is provided on sheet 2 for reference.
Version 2.0: Spindle OD WAS .7875/.7873, IS .7875/.7877