Wrench

The Wrench is similar to wrenches from other mods, by shift right-clicking, it can be used to dismantle machines from this mod and also machines from IndustrialCraft 2 (losslessly), Thermal Expansion and any other mod whose blocks can be dismantled with a BuildCraft wrench. The other way around, anything that can be done using this wrench in HPTanks, can also be done with a buildcraft-like wrench. The Wrench is also used to construct the High Pressure Tank by shift right-clickling the Tank Controller, to dismantle the Pump and also to rotate both the Pump and all the Machines.

Crafting
If a mod that adds ruby, peridot or sapphire gems (like ProjectRed) is installed, those can be used to craft the Wrench instead of the Diamond/Emerald.