A blue cog is a quest item used in Clock Tower to repair the blue wheel. It can be obtained by going down the trapdoor northeast of the Clock Tower, going down the trapdoor and following the path until you get to the rat cage.
Disassembly[]
| Disassembly XP | 0.1 |
|---|---|
| Item quantity required | 1 |
| Material count | 1 |
| Base junk chance | 98.9% |
| Possible materials | |
| Often | |
 Simple parts | 99% |
| Rarely | |
 Variable components | 1% |
| NPCs | |
| Items |
 Black cog Red cog Blue cog White cog Rat poison |
| Locations |
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| Music |
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| Miscellaneous | Quick guide • Transcript |
