I know we had a thread about this stuff a while back... what was the difference between the Juice with a number 2 and a Juice with a number 4?
The designation describes the model:
C2= Two layers, Corkscrew
S2= Two layers, Scissors
KF4= Four layers, (serrated) Knife and File
CS4= Four layers, Corkscrew and Scissors
XE and Pro are just fancy ways of saying they threw in everything plus the kitchen sink...
Def