This is an optimized version of the “Gridfinity tweezers box” by MarB (Thanks a lot for the .step file)

I added various fillets, made the baseplate slightly thicker and removed unnecessary features.
It should print faster and help center your tweezers inside of each slot, also it should have more strength to hold tweezers with harder springs.

If you're interested to see similar designs, I have a dedicated youtube video in which I showcase them, including an overview of them in use, in the kitchen or workshop:

If you find any value in these desings, don't forget to like :)

Happy printing!