Hex key holder, 7 sockets

Description

Seven sockets for 1.5 / 2 / 2.5 / 3 / 4 / 5 / 6 mm keys, ascending left to right. The sockets are hex, not round: the key cannot spin and you can see which one it is without pulling it out.

Clearance is +0.35 mm per side, so a key drops in freely but stays put if you knock the block over. Take 0.1 mm off in the slicer for PLA, which shrinks less.

The block is heavy at 25% infill, deliberately: a light organiser slides across the bench when you pull a key. If you want more, there is no weight pocket - just print it at 60%.