The Wrench is a Road Builder’s best friend. A very useful and versatile tool, capable of rotating machines and changing the display properties of countless decorative blocks.
The wrench has two modes, creatively named Mode 1 and Mode 2. Most functionality happens with Mode 1; this will rotate any machine, and toggle things like support beams and poles on various decorative fences and barriers. To switch to Mode 2, aim at open air/sky and sneak-right-click. Mode 2 will toggle a full-size base plate for the machines, letting them cover hidden ugly pipes underneath, or change the fluid or item being transferred on a Paint Filler Hopper.
2x Iron Ingot
1x Tool Handle