705227 Mahlkönig Kenia and Guatemala Lab 65mm Grinding Burrs.
Important note regarding placement- The two burrs have different inside diameters. The larger inside diameter hole (article 308157) goes in the fixed position in the rear of the grind chamber. The smaller inside diameter hole (article 308158) fits in the rotating position on the pre-breaker assembly.
These will NOT fit the Guatemala 710, 710 Lab, and 710 F grinders.
OLD PART NUMBER(S)-308183