In my line of work I come in contact with many 3D printers of all sorts and I have to have the right tools for each machine. That totals up to a rather large tool chest I have to carry around (about 20lbs of tools), So to combat this I decided to take the few tools I use daily and make a small kit for those.
What this kit holds:
Spatula (With two magnets to hold it in place)
Box cutting knife
Open space for a variety of tools depending on the flavor of the week printers.
Magnets used: http://www.rare-earth-magnets.com/magcraft-nsn0834
These are an almost perfect slip fit and will not back out.
Full (about 20% for opensource)
with Z-Temp mod
Bed plate set to 40C
no Shim used