Gem Analyzer

This is a sub-quest of Dunfire Diamonds are a Dwarf's Best Friend.
In order to destroy the gnome gem analyzer, I need to disassemble it. I will need special tools for that.
==Steps==
I need to find, in any order:
# The first sized wrench, the bolt sized gem analyzer wrench (labeled 1 bt).
# The second sized wrench, the microbolt sized wrench (labeled 1 mbt).
# The third sized wrench, the bitbolt sized wrench (labeled 1 bbt).
# The fourth sized wrench, the speckbolt sized wrench (labeled 1 sbt).
==Notes==
The wrenches will spawn randomly at the following locations:
* In the east tower, middle floor, on top of a crate 
* In the east tower, middle floor, on top of a bookcase 
* In the east tower, top floor 
* In the west tower, ground floor, on top of a crate 
* In the west tower, middle floor, on top of a barrel 
* On top of the gate. Climb either tower and jump down onto the gate 
==Rewards==
*Progress: Dunfire Diamonds are a Dwarf's Best Friend quest.