Mazzer Lux Grinder Burr Set - 195D Direct-fit burr set for the Mazzer Lux espresso grinder, sized for consistent, on-demand grinding performance. SPECIFICATIONS External diameter: 61 mm Internal diameter: 37 mm Thickness: 8.4 mm Mounting holes: 3 COMPATIBILITY Fits: Mazzer Lux model only INSTALLATION Moderate difficulty, requires removing the hopper and burr carrier; a qualified technician is recommended if you're not comfortable disassembling the grinding chamber. PRO TIPS Replace burrs in pairs (upper and lower), mixing a worn burr with a new one causes uneven particle size and inconsistent extraction. See our grinder burr maintenance guide for signs it's time to replace them. A sudden increase in fines, channeling shots, or a noticeably faster/slower grind time at the same setting are classic symptoms of worn burrs on this grinder.