Visit Universal Wheel Dresser Adoptable on Surface grinder and universal tool grinder for dressing grinding wheel into various cross sections of flat or curved shapes. By "SIGHTING" the diamond point through the lens, radius and angles can easily be made perfectly tangent-Visu-ally-Even with diamonds. Likewise radius can be blended together with most unbelievable accuracy. Features Center height......65mm Max wheel diameter......200mm Max convex radius......10mm Max concave radius......25.4mm Dressing angle......95°-0°-95° Tangential travel......Appo×22.5mm