Utility/meter cupboard square key (2 sizes)

A basic square drive key commonly used for accessing utility/meter cupboards.

Available in 2 lengths ~50mm and ~20mm.

Requires a strong filament, I have been regularly using one printed in PETG for a number of months now and it still works. The round part of the key is kept thick as an earlier version had issues with too much flexing with a thinner part.

Print with 100% infill.