I think this has been brought up before, but I can't find any threads for it. What is this tapered wrench for?
http://www.ebay.com/itm/Snap-on-3-4-7-8-Open-End-Wrench-S2428W-Tapered-Ends-/330774105293#ht_3057wt_754
Is it only an obstruction wrench or is there a more specific function?