Clockwork Chainaxe gone from the game? Replaced with Chainsword?

So I was trying to do a particular achievement, "I Didn't Ask For This". This requires two Clockwork Chainaxes. I believe I got the recipe for it through Clockwork Knight, but the issue is, I got the recipe for the Clockwork Chainsword instead. On the Wiki, there is no page for the Chainsword. However, the tooltip is identical, and the stats are similarly distributed - only the sword has 20 slashing and 4 crit instead of 24 slashing. Did they replace the Chainaxe with the Chainsword? Pic:

Edit: Also noteworthy is the fact that the crafting recipe is the exact, only there's a fine steel sword in the place of the fine steel axe.

 

I've seen it in games I've played recently, but I'm not sure if it wasn't added back in by a mod

 

I'm pretty sure the clockwork chainaxe is a receipe that you find in one of the random bookshelves.