Please know it in advance:  1. This parts is not original timemore parts.

2.It is suitable for Timemore chestnut C /C2/C3/C3S/Slim/nano/G1,  but it is not suitable for Chestnut Slim plus, G1plus,Because these plus versions are equipped with E&B burr。

3， Many customers commented that the pointer of the adjustment knob does not point to the 0 point on the dial when the adjustment knob is turned to its maximum tightening. Yes, these comments are all true. Because the starting point for this adjustment piece is to allow us to choose from 30 gears in a circle when using the grinder, rather than the original 12 points. The circle of numbers above is only for the purpose of easy memory. Why do some customers say they can point to 0? Because that's just a small probability event, which number points to randomly depends on your grinder。   If you mind this imperfect detail, please do not purchase this product