Whirlwind USA TSS 4-Inch Laser Welded Dry or Wet General Purpose Standard Power Saw Segmented Diamond Blades for Cutting Concrete and Masonry (Factory Direct Sale) (4") Designed for cutting concrete, masonry, brick/block and other building materials. Can be used wet or dry. Laser welded Segment height .395"(10mm). Arbor 7/8"-5/8". Size 4"x.080"x.395/10mm. This diamond blade belongs to Whirlwind USA Thunder Series - Thunder General (Standard Segmented)