How do i assign an animation to a tool?

I'm going to learn how to script soon, but for the time being, i'm unable to make a script with an animation. I mean like one of those scripts that when you equip the tool and click, the animation starts playing. Could someone help me out with this? I dont even know how to script the handle.. Also, the animation i created isnt set on loop, and i want it to stay at the same end position until you unequip / click again (whatevers more simple).. sorry if its alot, but i'm a real newb when it comes to scripting..