Two Segments  trapezoid grinding tools 
Easy Change Concrete Diamond Grinding Shoes 
*Applications: For grinding or polishing concrete surfaces, rapid removal of concrete, granite, asphalt, marble and other construction material  
*Good for general grinding and heavier stock removal 
*Large grinding segments with heat treated steel bodies which provides durability and tools life
*Soft medium, hard bond for option 
*Fine,  Medium, and Coarse grit, grit 6#-300# available
*Dry and Wet use