Bought this vintage 70's Krups coffee grinder off ebay for cheap after my expensive, one year old coffee grinder broke (and was designed to be unrepairable). Five years now and going strong :
Jura Conical Grinder Burr Set (Pair) Replacement For Impressa – Coffeesection
Amazon.com: Proctor Silex Fresh Grind 4oz Electric Coffee Grinder for Beans, Spices and More, Retractable Cord, Stainless Steel Blades, Black : Home & Kitchen
Jura Grindstone Replacement - iFixit Repair Guide
How to dismount the Bosch MKM6003 coffee grinder to be cleaned - YouTube
Siemens Surpresso - Bosch Benvenuto open the grinder - iFixit Repair Guide
Jura Grindstone Replacement - iFixit Repair Guide
TWOMEOW Coffee Grinders for Spices and Seeds, Spice Grinder Electric, Herb Grinder and Coffee Bean Mill with 2 Removable Stainless Steel Bowls
Grinder V5 Repair Kit For Bosch benvenuto/Classic/Venezia | eBay