Hi, can someone give me a quick rundown of what the different #K's mean on hones? i searched the wiki but didnt see anything.

Also i have a franz swaty on the way, and i was wondering if this, as a beginner, is all i need to sharpen my blades up a little bit.
When i watched lynns video on honing he says to use only 4-5 strokes? is that enough?
when you send your razor off to be honed, does someone just run it accross a stone 4-5 times and thats it?
also does the franz swaty have a #K rating or certain grit or anything?

Thanks a lot!