Zenith High Speed Precision Grinder. This Stepless Patented Micrometric Regulation System espresso grinder is the perfect grinder for any high volume set-up. Complete with High Speed" Maintenance and Chrome aluminum Rotax Doser makes this grinder dose quantity easy to regulate. The Methacrylate tamper (Ø 57 mm) and die-cast aluminum body are only some of the components that this grinder contains. Enjoy the lasting quality and efficiencies that this quality grinder will bring to you.