Anyone who loves JURA products knows that while they are worth the money, they tend to gouge on their accessories.This conical grinder burr is a perfect high quality replacement for many of the JURA machines. You can make sure your model is in the list above. I'm still using a Jura Z6 since 2016, and it's going strong. I know that grinder burrs do wear down over the years which does affect the coffee quality taste. When you get a JURA, you can tell the difference in coffee tastes. Why else would you spend thousands on a coffee machine if you didn't?I wish they had instruction on how to replace the burr in your JURA, but thankfully, you can find many of them on YouTube that will guide you step by step.Having used the same grinder burr for over 8 years, once this replaced, my partner and I could tell there was a difference in the taste. I didn't mention the change to him since I wanted to make sure I wasn't doing the placebo effect in thinking it was better because of the upgrade. When he mentioned and asked if I had gotten a different blend, I knew the burr made the difference.Great gift idea for those of your JURA loving friends.