"1. [ Coffee Grinder ] manual coffee grinder Upgraded to S2C660 grinding core, It is made of CNC machining stainless steel conical burr. Double bearing central axis positioning-uniform grinding particles. Burr size 38 mm-efficient grinding of coffee beans 2. [ Roughness Adjustment Function ] Adjustable in about 36 steps. You can easily grind the desired roughness from fine to coarse with the adjustment nut. Clockwise rotate get finer powder; Anti-Clockwise rotate gets coarser powder 3. [ Excellent Conical Grinding Burr ] Hand coffee grinder milling blade with 55-58HRC hardness in 5-axis CNC machining realizes uniform grinding with almost no excessively coarse grains. At the same time, the generation of fine powder is minimized 4. [ Well Labor Saving Performance ] The smoother movement is realized as the handle keeps turning for a while even if you release your hand due to the built-in bearing. In addition, a compact body of 52 mm that is easy to grasp even for small hands. And it is possible to grind lightly with very little force 5. [ Convenient To Carry & Clean Design ] C3 Manual bean grinder weight 700g , while maintaining a lightweight and a moderate sense of weight and luxury. It is ideal not only for home use but also for carrying outdoors or traveling. Easy to disassemble for cleaning - just be cleaned by brush 6. [ Coffee Brewing Method Suitable For You ] coffee grinder is suitable for both pour-over and espresso, also used for Moka Pot, Aeropress, French Press, Cold Brew, Drip Coffee maker. "