If you are looking for Information about PSU Clementine, Go check their Wiki
Grinder Base A
From The re-PSUPedia
Material for a grinder, used to upgrade weapon damage. Upgrades A, B, and C-grade weapons.
★★★★★★★
Item details
- Grinder base As are sold at all MA-GRMS locations for 1000 meseta.
- Strike -2, range +4 when fed to a PM.