perhaps a winter project is to make a handle for the reamer.

I use a hack saw quite often and being opinioned about my tools have decided to only use the type that have a tubular frame beam and don't use a wing nut acting on a pull bolt directly connected to the blade. These lower cost, often stamped beam, types have a lot of twist when sawing. Perhaps a small thing but when sawing all I can think about is how the cut is going. I think this helps explain why I don't double up a blade.

BTW if one does do a double bladed sawing pay attention to the second blade's tension. Most low cost hack saw frames have their blade engaging studs/posts at an angle, to better trap/secure a blade with. But if both blade holding studs are on the same side of the frame one blade will get tight before the other has seated on those angled studs. Andy