Mazzer Super Jolly Espresso Grinder OEM Repalcement Burrs - 33M Mazzer Part No: 33M / Packaged and sold as a set of 2 burrs / Mazzer name and part number etched on burrs Replacement burrs for the Mazzer Super Jolly Espresso Grinder Rotation : Clockwise / Outside Diameter: 64 mm / Inside Diameter: 37 mm Thickness: 8.4 mm / Holes: 3 / Grinds approx. 880 lbs of coffee / Made in Italy by Mazzer Please Note: It is common for grinder burrs to have "spots" of oxidization from exposure to air, this does not mean that the burrs are used or are inferior in quality in any way.