3M 20818 DSD Truing Tool 3/8 in x 1-3/4 in 3M Industrial Market Center
3M 20818 DSD Truing Tool, 3/8 in x 1-3/4 in, : Industrial & Scientific. 3M 20818 DSD Truing Tool, 3/8 in x 1-3/4 in, : Industrial & Scientific. Specially constructed with a proprietary alloy, our ™ DSD Truing Tool performs precision shaping of resin-bonded diamond and CBN wheels. The tool helps operators obtain the smoothest, most precise wheel performance possible by bringing balance and even surfaces back to the wheel after repeated use. It trues straight ODs, angles, or sides of these wheels without requiring the use of a coolant. . . .