The submicron CNC profile surface grinder “ULTRA-H612CNCII (2 axis CNC control) is an outstanding product created by the excellent and robust CHEVALIER R&D team through enduring endeavor, entire devotion, and wide experi......The submicron CNC profile surface grinder “ULTRA-H612CNCII (2 axis CNC control) is an outstanding product created by the excellent and robust CHEVALIER R&D team through enduring endeavor, entire devotion, and wide experience. The submicron accuracy of ULTRA is of great benefit to the area of high precision grinding. ULTRA will be a productivity booster which ensure success to your business. Mirror surfacing (surface roughness):Rmax 0.00001" (0.25μm). Grinding accuracy:0.00004" (1μm). Positioning accuracy:0.00002" (0.5μm).