Grimy Grind: Manual Coffee Grinder Bit for Electric Drill/Screwdriver

Grimy Grind is a drill bit that connects with a specific manual conical burr coffee grinder to convert it to auto. No need to spend hundreds of bucks on a grinder. This + drill + $20 grinder= good riddance. Booooo expensive grinders.

https://www.youtube.com/watch?v=_n_tG-FGnO4

The specific grinder this bit is for: https://amzn.com/B013R3Q7B2

There are two files. The consumable end should be printed with a high infill percentage(50-60%) and a thick shell. Shell thickness is important bec