DURABLE and EFFICIENT BURR - Fixed with dual bearing design ... TAKE IT EVERYWHERE - The HEIHOX Manual Coffee Grinder only takes up little space(2.2X7 inch), compact and lightweight.

The KitchenAid Semi Automatic Espresso Machine with Burr Grinder is the closest thing I’ve ever had to a professional-quality ...

Burr grinders use two revolving abrasive surfaces ... It grinds in automatic 10 second increments and also has a manual option if you want to be really specific. It has 40 settings, is easy ...

Eventually, the burr will get dirty and/or wear out, but that doesn't cost too much to replace. You should easily get 10 years out of a good coffee grinder, and much longer out of manual ones.