I wanted to keep my router bits organized and protected from incidental contact while on my benchtop or in a drawer but couldn't find a bit holder I liked that also had a lid. It also helps keep the dust off for the most part (the finger holes let in some). I used finger holes in the lid because I need it to slide under a low shelf and it won't fit with a handle. This is my first model made from scratch and I'm still learning so apologies for any weirdness in the print settings or model itself.