VP F7 props

abnrngr1986

Cadet
Joined
Sep 30, 2007
Messages
6
I'm looking at getting a new set of the F7. Looking around and i'm finding the part numbers of 3851467 and 77 which is front and rear. What does the last two digits mean my original are 7B and 7C . I've seen 2K and lots of other numbers. I initially thought counter and clockwise rotation, but there are numerous last two numbers?
 
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