Hario hand grinders are solidly built units intelligently designed by the Japanese. High in quality, they rival the performance of the higher end Zassenhaus hand grinders - without the hefty price tag. With adjustable conical burrs, Hario grinders can handle coffee makers such as drip, stovetop, french press, and the ever popular Aeropress! They can even grind fine enough for some semi-automatic espresso machines (such as the Saeco machines with pressurized portafilter handles).