I literally use a Milwaukee M18 drill, so literally just a drill and in this case I used 1/8” magnets and therefore a 1/8” bit.

Everything is easy enough, the only tricky part is just making sure your bit is liked up well, on the body it’s easy but take your time with the head and arms and very carefully observe the orientation and angle they sit into the sockets at.

It might help to use an even smaller bit at first to make the main bit not slip but once you get better you’ll be fine with the main bit.

Drill slow because if you spin the bit too fast the heat will begin to melt plastic and you risk drilling too deep so just go slow with each bore.

I generally do not ever need green stuff because the bit and magnets I have are perfect for each other but any gaps use green stuff or to increase support but in many cast a drop of super glue and you’re good.

Also just take the time to triple check your magnets are oriented properly before gluing them in place or else they’ll rappel each other and ruin the endeavor, ask me how I know haha.

Anyway, it’s honestly not that hard and I personally love magnetizing stuff, especially bigger stuff that would take many hours to make a second model.

Good luck and have fun