A while back I was browsing the old (downloadable) dnd4e character generator, and I found an item called Augmenting Whetstone. When used as a minor action, it grants your weapon "a +2 enhancement bonus on attack rolls and damage rolls until the end of the encounter." I thought this was an awesome consumable for 75g and bought a bunch of them to use on my Magic Battleaxe +3.
After closer inspection, I noticed that it adds an "enhancement bonus" and I wondered if maybe that bonus doesn't stack with a magical item's enhancement. Anyone know the exact ruling on this?
TL;DR- Does Augmenting Whetstone work on Magic Battleaxe +3?