CNC controlled, our OD grinder built by Tru Tech Systems uses a 14″ grinding wheel and a chuck that rotates to grind the outside diameter (OD) of round parts. We use our OD grinder primarily for grinding the steel shanks on carbide tipped tools that we create. These shanks are ground to a H6 tolerance, +.0000/-.0005, to ensure that they fit into a tool holder properly at their final destination. We also have a diamond grinding wheel that can be used to grind carbide for various solid carbide form tools.