Trapezoidal Three-circle Segments Concrete Diamond Grinding Block 
                
                    
	Lavina Diamond Grinding Blocks Remove thin coating materials easy. 
	Diamond Grinding Concrete Blocks used for quick connecting grinders.
 
	Grit: Coarse, Medium, Fine (16#,24#,36#,46#,60#,80#,120#,180#,230#,270#,320#)