this segmented blade is designed for use with a variety of building materials such as: concrete, reinforced concrete , curbs, bricks, pavement, limestone, sandstone, and granite. Universal application with optimal cutting speed ratio and long life. 
This blade is of a PRO series 
This blade is available in dimensions: 115mm (4.5"), 125mm (5") and 230mm (9"). 
 
Specifications 
 
Manufacturer Country: Germany 
Productin country: Ukraine