The lowly 1/4″ hex drive bit can be an excellent way to build up a lightweight, versatile and compact tool set specific for your needs. The ability to add, subtract, and replace bits adds flexibility that multi-tools can’t provide. Park Tool and Genuine Innovations items were ordered from the LBS. The heavy needle, dental floss, and electrical tape that are usually around the Park Tool handle section were removed for this picture. The examples here don’t include any chain tools. The PS4 pliers can usually deal with quick links. Check compatibility with your chains in advance, and grind down the jaws if required.

The DIY tool bag mounts to a full-length Velcro Loop “rail” that is sewn just below the zipper of a DIY frame bag. Accessible and yet not in the way. Back of tool bag with a 3″ length of Hook Velcro . Total weight of 7 bit tool set and Genuine Innovations tire plugging kit ~140 grams.
Information on creating the hidden rolls can be found here.