Detailed Product Description Masonry Laser Welded Saw BladeInner hole/Arbor: 20mm, 22.23, 25.4mm etc. available. Item No.DiameterSegment heightL inch/mmmmL09M109"/23010L12M1012"/30010L14M1014"/35010L16M1016"/40010L18M1018"/45010L20M1020"/50010L24M1024"/60010Quality grade: Super,Premium,Standard, Economy,Universal.NOTE: L18M10U--Laser blade for Masonry, dia 18"/450mm, segment height 10mm, ...