Hello, I still haven't figured out what this "Unusual Tool" is. I actually bought 4 of them. One had a broken, non-removable front blade, and overall length of the tool was shorter than the one posted. The next were were the same , but one had a broken removable blade. I brought a good blade in to work, gave it to my blacksmith friend, and he made a new one!! The tools appear to have been manufactured, all of the blade bolt patterns were identical. Wrenchguy, that is a great guess, but I was unable to confirm!!! Regards, Lou