Ringtool is the World's Most Useful Compact Multi-Tool

 - Jul 5, 2013
References: kickstarter & think.bigchief.it
Designed for artists, mechanics, cyclists, construction workers and anyone who is handy with tools and likes to fix things up, the Ringtool is by far one of the most useful and practical compact multi-tool designs ever to be seen since the creation of the Swiss Army knife.

The brilliance of this little gadget is that it is as compact and simplistic as possible, being pared down to just a ring that can be easily slipped onto a key chain with no bells or whistles attached. It can be carried on you at all times without adding significant weight or bulk to your pocket and comes in handy for tightening screws as well as opening beer bottles.

The Ringtool compact multi-tool is described as having "maximum functionality with minimal form."