These little pens are some of the most handy tools you can add to your keyboard/soldering arsenal. There is nothing worse, for example, than dropping a screw inside your freshly soldered keyboard case. You can hear it rattle, and then even see it, but no way can any normal human fingers fit in there...but this little claw pen can!
Worry less when building your mechanical keyboards, grab one of these, keep it on hand (no pun intended) and get to work! <3