Triangular Utility Key - 20mm

If you’ve ever lost one of those tiny triangle keys for a generic utility lock and wished for something better, this is for you. This is a handy T-handle key with a 20mm triangular head. I actually designed this to use on some forest gates around here, and it works perfectly. It’s simple, ergonomic, and a lot easier to find in your pocket than the original metal ones.

I recommend printing this with at least 3-4 walls and a higher adaptive cubic infill, like 30-40%, to give the head enough strength for everyday use. PETG is a good choice for durability, but a strong PLA will work if you treat it nicely.