Concord Blades GCD040FHP 4 Inch Double Rowed Diamond Cup Wheel with 5/8"-11 Thread</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>14 Segments & 5/8" 11 mm Thread</li><li>Use Dry/Wet to smooth Concrete or Field Stone</li><li>For use on an Angle Grinder of Floor Grinder</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51Acy%2B7UETL.jpg' noproxy></br>