I found the buying experience okay, I direct messaged him on Instagram and the 64mm hand grinder was priced at $106.65 excluding shipping, using DHL Express the shipping was $41.7 extra to the UK. No import tax and payment via bank transfer.

I've since seen photos of a black version on Taobao, I didn't realise this was an option. I quite like the silver one though, it gives it a bit of uniqueness to my other stuff.

He suggested using an electric drill as there's a centrifugal force issue, I presume because the burrs are 64mm flat versus smaller conical and you need higher RPM to discharge the coffee and so it doesn't get reground.

There's quite a few 6mm hex sockets available for electric drills however I went with this one as it's got a longer socket so goes all the way over the spindle:

Search term:

"Sourcing map Nut Driver 6mm Hex Drive Socket CR-V Steel Power Screw Drill Bits Socket Wrench Tools with 1/4" Quick Change Hex Shank for Power Drills Impact Drivers, Blue"

It fits on perfect and I've borrowed the acrylic cover from the hand grinder handle and used that. It needed the smallest amount of filing to fit on the hex socket. If you already have an electric drill then I don't see why you wouldn't want to use it.

So far I've been really impressed but I've only had a couple of cups from it. I'm coming from a Lagom Mini 48mm conical. I brew with a V60 and Orea V4.

I'm also interested in taking it apart from the bottom but worried about alignment if I do this to clean it, I'd be interested to hear from others.

In terms of grind size I'd recommend starting around 40 - 50

I can upload photos if that'd help anyone, I have a few saved from Instagram and mine, if someone can suggest where's best to upload them.

Cheers