Fiorenzato F4 A/Nano Grinder Burr Set - 58mm aurelia-body-face-panels but note that the probe

but note that the probe is bent to shape on some models

Astoria Compact

this one may actually extract more predictably

Reduces dirt

Because this tip seals purely on the precision of its tapered threads (no O-ring or gasket)

Fiorenzato F4 A/Nano Grinder Burr Set - 58mm aurelia-body-face-panels but note that the probeFiorenzato F4 Nano 58mm Flat Burr Set Hardened steel flat burrs sized 58 mm outside diameter x 33. 4 mm inside diameter, 8. 6 mm thick, three hole mount, right hand rotation rated to last up to 370 kg (815 lbs.) of coffee. SPECIFICATIONS Outside diameter: 58 mm Inside diameter: 33. 4 mm Thickness: 8. 6 mm Material: standard hardened steel Rated life: up to 370 kg (815 lbs.) COMPATIBILITY Fits: Fiorenzato F4 M. C. (new version), F4A, F4A V220 110, F4E,