Square socket utility key

A basic utility/gas/meter cupboard key with a square socket. Also used on some public bins. Has a decent thickness for the grip with a thinner section on one corner for easily putting on a keyring.

Print with a decent number of perimeters (4 or 5 for 0.4mm is good) and ~25% infill, should be strong enough for most latches unless they're really stiff.

Print upright as oriented, no supports needed as the top of the square socket void is topped with a taper.