Phones are used for just about everything these days and now an inventor has taken this to the next level by creating a case that doubles up as a Swiss Army knife.

The TaskOne is fitted with 22 tools including a wood saw, removable knife and three screwdrivers. It also comes with a wire cutter and stripper, six Allen keys, two stands to enable the owner to use the iPhone as a television, a ruler, a bottle opener and pliers.

All the tools are made from stainless steel and the total weight of the TaskOne case is just 89g.

Addison Shelton, 30, the chief executive at Task Lab who designed the TaskOne, said: “My initial inspiration for the product came in late 2012. I own multiple multitools, but never carried them with me.

“I wanted to design a product that would allow me to take my tools with me and never forget them at home. The tools are made from 440C stainless steel – a high-quality stainless steel. They are housed in an aluminium shell and connected to the phone via polycarbonate bands.”

TaskLab’s case comes in silver, black and red, and is available for the iPhone 4, 4S, 5 and 5S.

It is made from aluminium and polycarbonate, and the case adds only 5mm to the thickness of the phone.

The iPhone 4 and 4S versions cost $80 (R859), while the cases for the iPhone 5 and 5S cost $100. Task Lab is currently selling the iPhone 5 and 5S range at a reduced price of $75. – Daily Mail