grinder base

[fay]

im just curious to what this does exactly.

i have a few "grinder bass S" items but i cant use them for anything. when i grinder a weapon i need say "grinder S+4" yet the grinder bass has no use.

what is it im missing. these items seem so pointless to me :S

[Anduril]

Grinder Bases are the synth ingredient that go along with [B] Grinder S to make S rank grinders to grind your S rank weapons. The [B] is found at the synth shop on the GC 2nd floor.

[Pandorasbox]

As an FYI with synthing grinder base you also get the chance to get +1-10 to the grinder. This allows for more success in synthing with it.