How To Remove Bearing from a Baitcasting Reel Spool

Removing or replacing bearing from a baitcasting spool is a bit hard. Proper tools are needed to remove bearing.
Tools that I use:
Fishing Reel Spool Removal Tool - can properly remove the spool drive pin without damaging the frame pin of the spool.
Digital Caliper - to determine the smaller diameter of a drive pin.