CNC Single-Pass Honing Machines SP 450/650 CNC Single-Pass Honing Machines SP 450/650It is a four / six spindle machine designed to meet the requirements of high production for components of bore diameter from 15 to 75 mm.Key Features:High dimensional and geometrical accuracy.Bore accuracy up to 2 microns.Higher productivity.CpK > 2Surface finish up to 0.1 Ra Request A Quote Contact Sales