Grindstone

s are Weaponsmithing Assets that can be acquired as necessary components for completion of a number of rare Weaponsmithing tasks (levels 14-20) and/or as optional components in tasks that will improve the chances of producing a higher tiered weapon.

A may be purchased for 1 from M'tari Prin'tal in Protector's Enclave (North corner of the Seven Suns Coster Market). Grindstones of higher tiers may be acquired from and asset packs purchased in the Zen store. s are not bound and may be traded on the Tarmalune Auction House or transferred between players.

A task requiring a as an asset will take any tier of  in its slot. Higher tiered s serve only to improve chances of producing higher tiered results.

At Profession Level 3, 4x can be upgraded to produce a. At Profession Level 4, 4x can be upgraded to produce a. There is no task that will allow to become an.