Easiest way to paint tools and have them look freakin awesome is to pull them off the tank and paint them with this
http://shop.immortalhobbies.com/AMMO...1012107112.htm
I first used it and thought when the Old wood paint was used it was white but when it dries it looks like old european ash just what the tool makers would have used. I pop a bit of dark pigment on it to give a used look and it is perfect.
Here is a review and a bit of an instructional video from youtube