PNG MORE
Business & finance
Pixel
24x24 Free Pixel Icons
Contact, Control, machine
Gray
24x24
PNG ICO ICNS MORE
Network & communications
16x16 Free Application Icons
configuration, preferences, generator
SkyBlue
16x16
tools, job, production
Black
settings, generator, Applications
system, tools, Desktop
CornflowerBlue
reductor, work, generator
UI
Bijou
settings
10x10
Windows 8 Pack (Metro Style)
DarkSlateGray
26x26
Mixed
Frankfurt
DarkOrange
32x32
Avatars & smileys
Hamburg
IconSweets 2
settings, preferences, flag
40x40
preferences, settings, tools
Cologne
WhiteSmoke
Munich
Berlin
Gainsboro
PC 100 Icon Pack
Signs & symbols
Kiwi
Lingo
SteelBlue
GIS
DimGray
Computer & hardware
Sweetie BasePack
spanner, settings, tool
DarkGray
settings, Gear, Blue
settings, Gear, silver