KM dosing ring 51 mm, magnetic

• Flush fit in the basket: The ring sits deep enough in the 51-mm basket so that no dead space remains at the edges when distributing.
• Secure hold during WDT and single dosing: The magnets fix the ring to the basket, and it won't slip even when using needles.
• Coffee grounds land in the basket instead of on the work surface, especially when grinding into a cup and transferring.
• Designed for compact portafilter machines with 51-mm baskets.
  

What makes the fit special?

The ring sits deep enough into the 51-mm basket that no gap remains between the ring and the basket wall. Because it sits flush, you can use the WDT tool or a needle tool to distribute all the grounds evenly on one level, right to the edge of the basket—there's enough space for this even in the smaller 51-mm format.

How does the ring help with WDT and single dosing?

Two workflows benefit especially. When distributing with the WDT tool, the recessed magnets hold the ring firmly to the basket so it won't slip when you're needling. And when you dose into a cup that sits completely in the basket, you pour the grounds over the ring and use a needle tool briefly to help until everything lies evenly.

Does the ring fit my machine?

The ring is designed for 51-mm portafilters, as found in compact entry-level machines like the De'Longhi Dedica. If your machine has a 58-mm basket (most E61 and dual-boiler models), the dosing ring 58 mm is the right choice instead.

Who should get the dosing ring, and who shouldn't?

The ring is worthwhile if you can't grind directly and seamlessly into the portafilter, but instead transfer the grounds or distribute them with the WDT tool. Because it sits flush in the basket and holds magnetically, you work more cleanly and distribute the grounds more evenly without the ring slipping.

It's less useful if your grinder already comes with its own perfectly fitting dosing ring. For anyone doing manual dosing on a compact portafilter, it's a clear recommendation.

Technical specifications