I've been using it since Christmas '17 Bosch GKS 12V-Li cordless hand-held circular saw.
Works great. With the supplied parallel fence of the circular saw .
No. The Bosch Professional guide rail is only compatible with Bosch Professional GKS circular saws G models, GKT plunge-cut saws, certain GST jigsaws and GOF routers with adapter).
Found this one here:
It seems that if you "only" have a GKS and not a GKS G, there is no rail for it?
https://community.bosch-professional.com/t5...
I can't say whether the information is correct, it was a first hit when googling:
Good Luck
I was also wondering why I should have bought a plunge-cut saw. With the second picture I knew what it was about, the guide rail... Even with the large battery, there is a picture of 2 batteries and charger in it, but you only buy 1 battery without charger. That could really be better.
I thought I heard in a Bosch video that the "S" in the third position of the designation means that the unit fits the FSN rail system. But no guarantee!