The Key is a revolution in conical burr single-dose grinding. A massive, 83mm conical burr set into the most compact, space-saving design possible. The burrs and mount define the width of the Key, so it takes up a fraction of the space required by grinders with burrs only a fraction of the size. SCAA 2021 Product of the Year. The Mk.2 marks an evolutionary step in the development of the Key by introducing significant usability and workflow upgrades while maintaining the same footprint as the original version. The burrs and mount define the width of the Key, so it takes up a fraction of the space required by grinders with burrs only a fraction of the size. Features MK.1 Built-in Cleaning Brush with Replaceable Head Easy RPM Adjustment Knob Compatible with both Standard (49mm & 58mm) and Magic (58mm) Tumbler Configurations Magnetic Tumbler Centring on Hardwood Landing Pad MK.2 Built-in cleaning brush with replaceable head Easy RPM adjustment knob 5 micron stepped adjustment Compatible with both standard (49mm & 58mm) and Magic Tumbler (58mm) configurations Magnetic Tumbler centring on hardwood landing pad Tumbler configurations are interchangeable with Weber HG-2 hand grinder 83mm Burrs The Key is built around the massive 83mm conical burr set. Weber source thier burrs exclusively from Mazzer, but apply their own unique secondary processes to partially season them so they are usable out of the box, and then seal in the edge with a life-prolonging and completely food safe TiN coating. Perfect for the single-dosing café or home. Includes MK.1 KEY Grinder Main Unit No fuss plug-in-anywhere-in-the-world (90-240v). Ships with AUS plug. Our proprietary food safe Titanium PVD-coated Mazzer burrs, installed and factory pre-aligned. Both the Magic Tumbler (patent pending, fits 58mm) & New Standard Tumbler (fits 49mm & 58mm) Magnetic Hardwood Landing Pad Bean Feeder (pre-installed) MK.2 Key grinder main unit (Snow or Onyx) No-fuss plug-in-anywhere-in-the-world (90-240V) C13 type power cable Magic Tumbler & lid (patented, fits 58mm) Air blower bellows for cleaning RDT bottle Stainless dosing cup Hex wrenches for assembly and maintenance NOTE: Weber grinds coffee with the Key during the final steps of their QC process. While they do clean up afterwards, there may still be small traces of coffee remnants in the machine.