This is a remix of Drill Driver Bit Attachment by nrdaeger. I found his bit adapter fitted my ¼" impact driver wonderfly, but didn't fit the 2 20v Dewalt Drills that I had…so I stretched it to fit.

I've printed several in different colors (so you can tell the drills apart) and they work great! Printed with no supports or brim. If you have trouble with it coming loose from the print bed you may want to add a brim to aid in adheasion.

Enjoy