I made my own version a while ago for storing drills/cutters/inserts. The big issue is you really need to fill the complete drawer to stop them sliding around, which means I still need to print about another 2 or 300 more grids.
I can't help but look at those pen and caliper holders, and think how unstable they'll be.
I can't help but look at those pen and caliper holders, and think how unstable they'll be.