Gray truing stone (Globe # 213) made in Germany for truing or honing the front or inside of the blade of Globe slicers 75, 150, 260, 285, 300, 400, 500, 500L, 610, 660, 685, 710, 715, 720, 725, 725L, 760, 765, 770, 775, 775L, 810, 815, 820, 825, 850LR, 875, 875RL, 2500, 2700, 3500, 3600, 3750, 3850, 3875V, 3975, 4500, 4600, 4750, 4850, 4875, 4975 and all “L” models. A truing stone restores the straightness of a meat-slicer blade.