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Smooth Cogwheel is a Cogwheel that is only usable by a Engineer.

Source Edit

Purchased for 4x [Handful of Obsidium Bolts] from:

•  Frank Natale <Engineering & Mining Supplies> in Twilight Highlands
•  Zim Bamzabble <Engineering & Mining Supplies> in Twilight Highlands

Patch changes Edit

• Patch 4.0.3a (2010-11-23): Added 
  

External links Edit

• Battle.net (EU)
• Wowhead
• Thottbot
• DB MMO-Champion