Summary

This is a holder for pen knives. It's designed to fit the smaller diameter handles (think pencil) not the fatter ones (think magic marker). The wavy part in the middle is designed to give the holder some flex so that it compresses against the sides of a toolbox drawer to hold it in place.

This is also designed so that you could print several of them and the space between the handles stays the same.

The overall length is set to fit in my Craftsman toolbox You'll have to extend or shorten the ends to make it work with your toolbox.