Specification: 1.ST0105 X Type Grinding Wheel 2.size:4" 3.X type 4.used for grinding things We have the following workshops: 1 ... companies exporting construction tools and machines, includingdiamond cutting blades,diamond grinding wheels,diamond profile wheelsdiamond vacuum brazed toolstile bits, marble bits ... tools to Japan, Germany, the USA and Australia X Type Grinding Wheel 4"