This is my ¼ inch bit pocket driver keychain. I designed this driver to be the perfect everyday carry bit driver and holder. You can use it as a standard driver and there is another location to use it as a 90 degree driver for slimmer locations,. I designed the bit holder with recessed holes to allow use of 5x2mm magnets to keep your bits in place I know we all hate when our bits fall out of our tool. The tool has onboard storage, it has the room to carry 4 standard size bits or 2 long one or a mix of 2 short and one long. The second part is the sheath, I made the sheath slide off forward so there is no need to undo the keyring. The tool is one piece to make it sturdier and if you do happen to lose the sheath you can easily print another and even add logos.

The Driver: If you are using your own settings id say 4 walls and 40-45% infill, mine feels really strong at those settings and only 40 minutes to print. The bit driver although has holes for magnets they are not 100% necessary the driver tolerances are tight but if you do the bit has holes for 6 magnets one on the tip of the driver and one for the 90 degree driver hole and 4 for the onboard storage. I used glue to keep the magnets in place

The sheath: the cover for the bit storage I was able to bridge the gap with my printer but everyone's printers are different so you may need to add supports inside the sheath or change the printing orientation.