Triangular Universal Key for Water and Gas Meter Boxes

Simple universal keys to open boxes with triangular hole.
It prints in about 2 hours because it is 100% full and prints without supports. Very sturdy

REV.2:
26/06/2023 ADDED the other KEYS !! 
6mm - 8mm square and a omega.
Also added the .stp file that will allow you to edit and create other variants as well. If the time spent drawing these keys was useful to you, then please like it. HI