Cogwheel

Cogwheels, also known as Tinker's Gears, are items that fit exclusively in Cogwheel sockets, much in the manner of cut gems. Currently the only items having Cogwheel sockets are Bio-Optic Killshades, Retinal Armors, and the Ghost Iron Dragonling, all crafted by engineers. 
== Source ==
Cogwheels during Cataclysm, which requires an engineering skill of 525 or higher to use, are sold by the following vendors:
* in Stormwind City
* in Ironforge
* in The Exodar
* in Darnassus
* in Highbank, Twilight Highlands
* in Undercity
* in Thunder Bluff
* in Orgrimmar
* in Orgrimmar
* in Silvermoon City
* in Dragonmaw Port, Twilight Highlands
The Twilight Highlands vendors can only be accessed after completing a short chain of quests, which require level 84 or higher.
In Mists of Pandaria the cogwheels are crafted by the engineers themselves using Ghost Iron Bars (2).
== Description ==
Currently, all Cogwheels are unique-equipped, preventing a person from doubling up on any of them.
Cogwheel 	Benefit 	Cost
Flashing Cogwheel 	+208 Parry rating 	1x Volatile Seaforium Blastpack
Fractured Cogwheel 	+208 Mastery rating 	1x Goblin Barbecue
Mystic Cogwheel 	+208 Resilience 	
Precise Cogwheel 	+208 Expertise rating 	1x Lure Master Tackle Box
Quick Cogwheel 	+208 Haste rating 	4x Handful of Obsidium Bolts
Rigid Cogwheel 	+208 Hit rating 	1x Elementium Toolbox
Smooth Cogwheel 	+208 Critical strike rating	4x Handful of Obsidium Bolts
Sparkling Cogwheel 	+208 Spirit 	1x Authentic Jr. Engineer Goggles
Subtle Cogwheel 	+208 Dodge rating 	3x Electrified Ether
Mists of Pandaria 	Mists of Pandaria 	Mists of Pandaria
Flashing Tinker's Gear 	+600 Parry rating 	2x Ghost Iron Bar
Fractured Tinker's Gear	+600 Mastery rating 	2x Ghost Iron Bar
Precise Tinker's Gear 	+600 Expertise rating 	2x Ghost Iron Bar
Quick Tinker's Gear 	+600 Haste rating 	2x Ghost Iron Bar
Rigid Tinker's Gear 	+600 Hit rating 	2x Ghost Iron Bar
Smooth Tinker's Gear 	+600 Critical strike rating	2x Ghost Iron Bar
Sparkling Tinker's Gear	+600 Spirit 	2x Ghost Iron Bar
Subtle Tinker's Gear 	+600 Dodge rating 	2x Ghost Iron Bar
 
Category:Engineering