[leadin]It’s called the Screwdriver MINI, and at 0.7 ounces (and smaller than most keys) the product fits that name.[/leadin]
The tool slips onto a keychain or carabiner and provides a driver head and a bottle opener — that’s it.
It’s made of a zinc alloy. The size is 5/16″ x 1 1/8″ x 2 3/8″, which is about the size of a small key.
The company, based in Lee’s Summit, Missouri, sells the Screwdriver MINI as a “simple, functional, clip-able” design that is tiny but still allows for torque because of a flat grip.