SogYupk 4-Inch Concrete Turbo Diamond Grinding Cup Wheel for Angle Grinder 12 Segs Heavy Duty,Yellow;

Outside diameter : 100mm / 4 Inch
Inner diameter : 22mm / 0.86 Inch
Thickness : 7mm / 0.28 Inch
Package includes: 1* diamond grinding wheel

This diamond grinding wheel has a high diamond concentration for a long serving time and aggressive material removal which provides a very fast cutting action on masonry, stone and concrete. 
The air holes designed is help to maintain and cool the cutting pattern and reduce wear so as to produce a more consistent diamond scratch pattern. 

NOTE : Use water operation, please wear insulating gloves, in case of machine leak electricity.