Engineered for: Porcelain Mesh type segment is a re-enforced segment designed to effectively cut the hardest materials on the market. The ultra thin segment style also allows the blade to endure the most aggressive forms of cutting while simultaneously offering the cleanest cut. Alternative ses: Hard Ceramic, Thin Body Porcelain. Size: 4.5" ; Arbor: 7/8 - 5/8" ; Segment: 1.2t x 10w.