The 'Tool Tank' is a multi-tool keychain attachment that is shaped like a tiny army tank. The keychain is equipped with three different screw head attachments, which can be positioned for use in the tank's turret or stored away in the tank's tracks when not in use. This clever tool by Spinning Hat uses magnets to keep the screws heads in place.
Since carrying around a screwdriver with interchangeable attachments is less than convenient, this compact multi tool is the perfect way to give yourself at least a few options on the go. As Spinning Hat points out, this multi-tool keychain is the perfect mix of "DIY and tanks – two things at the heart of every red-blooded male’s existence."