The Screwdriver is a must have item for Rotary Craft! this is for reorienting machines which were either misplaced or were difficult to place correctly. Shift-clicking will often perform a different function, like toggling split and merge modes on the Shaft Junction . The screwdriver will also reorient pistons and stairs.
The Screwdriver is crafted with 1 iron ingot, 1 stick and 1 wooden plank with the iron in the top left corner, stick in the middle slot and wooden plank in the bottom right corner in a regular crafting table.
(Someone please input a picture of this)
As stated in the description the screwdriver is capable of changing the direction of the Rotary Craft blocks when right clicked and can change modes of certain blocks when shift-right clicking such as changing a Shaft Junction between merge and split modes or a Gearbox between speed and torque settings.