Purchased the brass coffee grinder off Amazon and had to agree with the reviews. The crank is separate to allow filling of the grinder.
I added a flexable Cap (TPU) that snugly fits the handle and shaft the cranking is improved and the top is better covered.
I also added a larger base to allow the grinder to stand upright on your kitchen counter.
Link to Amazon product that is the grinder the parts are designed for.
< https://www.amazon.com/dp/B07WK7X2K5?psc=1&ref=ppx_yo2ov_dt_b_product_details>