6mm Hex Bit Holder

UPDATE**Added a customisable model - https://makerworld.com/en/models/1779997-6mm-hex-bit-customisable . Just specify the width, height, and spacing to generate a holder.** The holder holds 10 6mm hex bits. I've printed in TPU but also tested in PLA and it should print fine. There's also a test piece included to test the size.