Soldering iron

For the assembly, any entry-level soldering iron will suffice.
Although, if you plan to dive into the world of DIY projects, you should consider getting a more expensive one with more features.
You’ll also need a soldering iron stand and a small reel of rosin-cored solder.

Soldering sponge

Make sure your soldering toolkit has a sponge that can be used for wiping your soldering iron clean. Make sure that the sponge isn't dripping wet or bone dry - it should be damp.

Diagonal cutter pliers

We prefer this type shown in the picture (Plato, model 170), but any other type will do.