Spool Pin for Hardware Store Spool

I stopped by my local hardware store and purchased a couple of spools meant for electrical wiring. Trying to roll the 5lb roll of filament onto it was a COMPLETE disaster... to cut an embarassing story short, I now have many sub-1/4lb rolls of ABS instead of one 5lb roll.

So instead, I removed the handle from the spool forcibly, and cut the axle in two parts (but not half! See photos!) so that I could take it apart and fit it through a roll of ABS, hopefully to greater success.

This pi