Board Thread:Speculation House/@comment-203.14.52.144-20150518014116/@comment-4010415-20151027221901

Well, Ozpin did say "They taught you to use one of the most dangerous weapons ever designed?" despite the fact that Ruby designed her weapon herself, and then he continued on to say "It's just that I've only seen one other scythe wielder of that skill before." These two quotes imply he was talking about scythes, in general. Not Ruby's sniper scythe, not sniper scythes, just scythes.

So, there are certain classes of weapon components, which may even have subclasses, considering it looks like Qrow's sword scythe's blade is very different in structure from Ruby's sniper scythe's blade.