... metallic; grinder Brief: 1. Obtain surface roughness less than Ra0.1 easily; 2.Suitable for different shapes,such as cylindrical,internal,screw ... in all kinds of machine tools,such as lathe,grinding machine,boring machine,milling machine,planning machine,spherical lathe and CNC machine tools,ect, just only ... remove any materials from the surface. JINGTA JTSU30-1 universal cylindrical grinder