Improved geometry Much sharper burrs improve grinding quality and coffee extraction Improved design around screw holes reduces coffee retention Lasts for about 900 kg of coffee Best quality design, materials and manufacturing Made in Switzerland Upgrade your grinder with Swiss-made Helfezi 65 mm flat burrs, engineered for baristas who demand consistency, clarity, and speed. Designed for Mahlkönig E65S, E65S GbW, E65W GbS, K30, K30 2.0, K30 TWIN, K30 TWIN 2.0, K30 ES/VARIO and K30 VARIO AIR. Also fits Ditting KE/KED Anfim Pratica, Anfim Luma, and Dalla Corte DC grinders. Machined with micron-level precision in Switzerland and tested under real café conditions, Helfezi burrs deliver fast, uniform particle distribution with minimal retention and excellent heat stability. Whether you're dialing in high-end specialty beans or maintaining consistency across high-volume service, these burrs are engineered to meet the highest expectations. Note: Uncoated steel burrs may develop light oxidation spots over time, even when unused. This is normal, cosmetic only, and has no impact on performance or coffee quality.