Gridfinity 1x1 Hex Bit Holder

My take on a 1x1 Gridfinity bin for hex bits. Holds 16 bits in a 4x4 grid. Created with a 6.5mm hex inner diameter which is a good fit for my tapping drill bits without being tight.  

OpenSCAD model file included.  Requires Gridfinity Rebuilt in OpenSCAD and BOSL2 libraries.