Compound Cutting Fluid

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The Compound Cutting Fluid is an upgrade material in Arknights, introduced alongside Episode 09.

Item description
An industrial agent necessary for metal processing. Can be used for a variety of upgrades.

Provides lubrication and heat resistance during the refining process, which can further increase the rate at which metal products meet final quality specifications.


The first of Cutting Fluid-type upgrade materials, these industrial-grade lubricants used in the processing of metallic components are needed for the advanced skill upgrades, Mastery training, and Elite 2 promotion of certain Operators introduced from Episode 09 onwards.

The Compound Cutting Fluid is obviously needed for the processing of Cutting Fluid Solutions.



Regular drops

Operation Sanity Drop rate Sanity per drop
9-6 18 Rare (~27%) 67
10-17 24 Uncommon (~53%) 45
11-16 21 Rare ?
12-17 21 Rare ?
SN-10 21 Uncommon ?
IS-9 21 Uncommon ?

See also