My inclination would be to look for brass drawer-pulls, fittings, spacers, anything else that is roughly 1/4"-3/8" diameter, drilled through, and possibly already tapped. You don't want to alter the handle, and, frankly, its much easier to ream or tap through-and-through, rather than trying to bottom-tap a long parallell(the handle) in soft-metal.ok, that problem is solved. what about converting an SE handle to work with a DE? Imagine an old type head on the chain link handle.
I suppose you'd have to grind the threads off of the handle and drill and tap the handle. Luckily my old man is an oldschool manual machinist.