weed/herb grinder

- Actually working weed/herb grinder

- 4 parts: upper grinder, lower grinder, middle part, kief box

- 2 middle part files:
- one with 3d-printed filter (distance between grids 0.5mm)
- one without filter (possibility of inserting store-bought metal kief filter)

- the parts have threads and can be screwed on each other

- diameter of holes: 4mm

- size of grinder: ca 5x5x6 cm