The wind spring is used to store mechanical energy. Once wound up with the coil winder, it can be used in another winder to provide a small amount of power, or it can be used to run various tools. Note that when charging coils, they run the risk of breaking, a risk which gets larger and larger as they are wound tighter and tighter.

The ultrasound sends high-frequency noise through blocks to determine their density. From this, it is able to detect nearby pockets of low density, such as air, or variations in density, like ore veins. It can also detect the silverfish inside infested blocks.

The motion tracker emits a sonar and radar pulse to detect any creatures and evaluate their distance and speed. From this, it can inform you of nearby mobs (including if they are targeting you), even through walls.,

The vacuum is essentially a handheld version of the Item Vacuum machine. Right-clicking with it will draw items and XP towards you, assuming you have the inventory space for it. Shift-right-clicking on a storage block can be used to empty it all at once.

The knockback gun deals no direct damage, but can be used to send mobs flying back and keep them away. Using shift-right-click, its powerful sound blast can also be used to punch out connected areas of loose material, like gravel, leaves, and ores.

The gravel gun launches pieces of flint at high speed at a target. At higher charge levels, the pieces can deal enough damage to kill most mobs in one hit. Due to its low mass and enormous velocity, the flint is not affected by gravity over its trajectory.

The fireball launcher fires ghast-style fireballs at a target. It can be charged like a bow, up to maximum power at dark blue. Higher charge levels mean a more powerful explosion, up to twice that of a TNT blast.

The handheld crafting unit is exactly as the name implies; it can be used as a portable crafting table without having to place it down.

Night-vision goggles allow you to see clearly, even in full blackness. However, they require a helmet armor slot and provide no defensive protection. To alleviate this, they can be crafted with a diamond helmet to make a night-vision helmet.

Buckets of lubricant or jet fuel can be made by placing empty buckets in the appropriate slots of the grinder or fractionator. They can then be carried to a machine that needs them, to save on piping for long distances.

Bedrock tools are made from bedrock ingots. They have infinite durability, and are faster than the diamond tools while being just as effective at harvesting blocks. Also, because of their hardness, a bedrock pickaxe can cleanly harvest any block, as if it was permanently enchanted with Silk Touch.

The TNT cannon targeting aid allows you to easily choose the target of the TNT cannon. Simply look at your target, placing your crosshairs directly on it, and the TNT cannon, if it is set to target mode, will target the block you are looking at. This tool may not work for extremely far targets, but they are outside the TNT cannon's range anyways.

IO Goggles are a utility device to see the input and ouput sides of machines at all times, useful when debugging complex setups.