PNG ICO ICNS MORE
Mixed
Pixel
Kailoon
tools
DarkSlateGray
32x32
Applications, pencil, tools
Black
UI
Gnome icons
macro, tools
Gainsboro
24x24
Fugue Icons
Screwdriver, tools, Wrench
16x16
Family & home
Snow
WhiteSmoke
Tango
preferences, tools, system
Led Icons
hammer, tools, Screwdriver
DarkGray
Computer & hardware
ASP.NET icons
settings, tools
SlateGray
Screwdriver, hammer, tools