Crowbar

A multi-purpose tool any rail engineer should carry. It makes removal of old rails a breeze and even works on Detector Blocks and Loaders. Additionally, right-clicking on a rail will allow you to adjust the rail. Most of the time that means reversing the rail's direction, but some rails will open a GUI. Right-clicking a Detector Block, Cart Dispenser, or Advanced Loader will turn the block to face the side clicked on.