Black cog

Black cog
Release date	17 June 2002 (Update)
Members only	Yes
Alchemy	Cannot be alchemised
High Alchemy	Cannot be alchemised
Low Alchemy	Cannot be alchemised
Destroy	Drop
Store price	Unknown
Weight	1 kg
Drop Rate	Unknown
Drops From	Unknown
Examine	A cog from some machinery.
Examine	A cog from some machinery.

A black cog is a quest item used in the Clock Tower quest to repair the black wheel. It can be obtained by entering the north-eastern door at the 4 coloured tiles in the Clock tower's basement. You need to either be wearing ice gloves or have a bucket of water in your inventory.