Hex/allen key size identifier

Never guess the right hex key size again! This handy 3D-printable tool helps you quickly identify the most common hex/Allen key sizes, whether for screw heads or unmarked keys. Designed for ease of use, the tool is available in both a no-support and supported version. For optimal readability, printing in two colors is recommended—just swap filament when the numbers start to appear. No AMS required! For a precise fit: Extruded hex features are 0.2 mm smaller than the nominal size. Cut hex features are 0.2 mm larger than nominal. Print it, use it, and never waste time trying the wrong key again!