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Grindstone Pentahydrate

Item Description

Compared to normal Grindstone, this tool has an even more stable structure. It is highly non-reactive.

Item Usage

An advanced grindstone used in the finish machining of weapon parts. Can be used for a variety of upgrades and the synthesis of D32 Steel.

Item Obtain Approach

Missions Item Drops From

Special Drop

Stage Type Mission AP EXP Lungmen Favor
Main 4-8 21 210 210 21