Allpoints 281010 Sharpening Stone Set For Univex

sharpenin stone set, sharpening stone has .250 hole ahd the truing stone has .323 hole, od is 1.984 on both' the one with the hole in the cover is for small hole -sharpening univex slicer 6509,7510, 7512, 7515, 8510, 8512.