Improved - Mini Bit Tool Screwdriver with Cap — STL Grátis

Upgrades over original model:

Relief Corner Cutouts - This allows the hex to be proper sized at either 6.45mm (snug) or 6.50mm (loose) vs the original model which is at a ridiculous 6.70mm. Why is the original model so much larger yet feels so much tighter? because its grabbing at the corners vs the walls which is not ideal.
Magnet cut outs for a 6mm x 1.5mm magnet on the cap.

There are 2 version you can print:

Snug Fit - width of bit slot is 6.45mm, the bit can still easily be removed and is my preferred sizing

Loose fit - width of the bit slot is 6.50mm, you would print this if your printer is maybe printing a little on the big side

Print this version and the original and i guarantee (or your money back) that this version if far superior.

Improved - Mini Bit Tool Screwdriver with Cap