Mini Bit Driver Enclosure for keychains for 4.5mm bits

I really really love multitools! However, I'm not a big fan of the 2D philips head driver that comes with my Leatherman Squirt and my Gerber Dime. Since I have a bunch of mini-bit drivers around (the 4.5mm size) I decided to make and share a little keychain companion for my favorite EDC tool.

Step 1. Find a 4.5mm bit that you need to have with you everywhere. Most maker types will have a few sets laying around - if you don't have any then check out your local HW, Electronics, or even dollar store for a set. Budget $1 to $3.

Step 2. Print it with 100% infill - add in your bit and

Step 3. Add to your keychain or EDC multi tool ring.

7mm (7.1mm actually) version available here: http://www.thingiverse.com/thing:2009124