Really, the list of possibilities just goes on and on. Proteus chews through an angle grinder disc in seconds. Researchers from the UK and Germany claim that they’ve created such a magical material.

The power switch has a one-touch release that lets the grinder power down quickly for convenience and safety. The disc spins at 10,000 RPM, again enough rotations per minute to tackle any grinding ...

Conical burr grinders have a cone-shaped burr to crush beans, whereas flat burr grinders use two disc-shaped burrs. Burr ...