EIFFEL Porcelain/UCS Blade 5”. Built with the latest diamond technology for cutting porcelain and UltraCompact surfaces; Featuring the unique Eiffel-Tower pattern diamond rim; Super fast and smooth cutting; The 4", 4.5" and 5" come with a reinforced core at the center; Material: Porcelain, UltraCompact Surfaces, Glass-like materials; Dry or Wet use. Arbor: ⅞”-20mm-⅝”. MAX RPM: 12,200.