The interior adjustment design of the grinder is the most classic and widely used for the manual coffee grinder. 

The following post allows you to understand the interior adjustment mechanism of the K0, K1, K2, K3, K5.

The grinder’s component parts of the interior adjustment design.  

1. Take our the receiver. Hold the handle to prevent rotation.

2. Rotate the spin dial clockwise till tightened. ***The corresponding number is zero and the number on the numerical dial may not be the same as the number of clicks from the grind setting.***

3. Rotate the spin dial anti-clockwise from the zero to your grind size. Rotate the spin dial anti-clockwise for a coarser grind and vice versa.

4. The grind setting (clicks) for each brew method as reference.