Supernova Burr Set: Precision CNC-machined 6-core 48mm Supernova Burr Set (HRC60), designed to elevate your espresso experience. Supernova Titanium: Crafted from 420 stainless steel with a titanium plating, the Supernova Ti burrs are optimized for espresso, delivering improved particle distribution at finer grind sizes. Balanced Espresso