Replacement Burrs for Mazzer Kold & Robur Grinders The Replacement Conical Burrs for Mazzer Kold, Kold S, Kold Electronic and Robur Grinders is a factory-original conical blades featuring a 71mm external diameter, built for professional espresso grinders that demand nothing less than exact performance. Replacing a worn set of grinding burrs restores uniform particle distribution, eliminates excessive heat generation during grinding, and optimizes flavor clarity. Sourced directly from the factory, this part carries the same engineering and build quality as the component that came with your equipment on day one, ensuring your grinder returns to peak working condition with zero compromise on extraction quality. Key Features Genuine Mazzer 186C factory part 71mm external diameter Restores uniform particle size Prevents excess grind heat Extends grinder motor life Precise cutting edge geometry Engineered for Precision Grinding The cutting geometry of these burrs delivers stable and consistent coffee grounds for reliable espresso extraction cycle after cycle. Over time, dull burrs crush beans rather than cutting them, leading to uneven extraction, channeling, and sour or bitter espresso. By replacing your old burrs with this genuine OEM part, you ensure correct particle size management across high-demand service periods. A Perfect Fit with No Modifications As a genuine OEM spare part, this component integrates directly into compatible Mazzer grinders without any adjustments or modifications. Replacing faulty or dull burrs preserves the original mechanical specifications of your equipment, which is critical for maintaining warranty conditions, safety certifications, and long-term machine health. Technicians and repair professionals rely on original parts like this one to guarantee clean, reliable repairs that hold up over time. Specifications Manufacturer: Mazzer Model: Replacement Conical Burrs for Mazzer Grinders Part number: FMA00186C/CQQ External Diameter: 71/49 mm Internal Diameter: 41/14 mm Thickness: 25 mm Phases: single phase Material: hardened steel Screw Fixing Holes: 3 Origin: Italy Compatible Models KOLD KOLD-S (201910-) KOLD-S-ELETTRONICO (201910-) KOLD ELETTRONICO ROBUR ROBUR ELETTRONICO What's Included Pair of burrs for Mazzer grinder