... 3.Can be used in parallel lathe,vertical lathe,grinding machine,boring lathe,facing machine,spherical lathe and CNC;4.Improve the metal surface roughness ... the surface roughness,micro hardness,wear resistance,fatigue strength and life. The process of metal surface finishing process machine ... :Firstly,to make the workpiece basic processed use the lathe tool in general machine tool,then,use tbe cutter ...