DSD Truing Tool

3M(TM) DSD Truing Tool, 1/2 in x 2 in, 1 per case Made of a proprietary alloy, excellent for truing diamond and CBN wheels. DSD tools will true straight ODs, angles or sides of wheels. Must be used without coolant. Use 1/4, 3/8, and 1/2 inch diameters with 3M(TM) Holding blocks.