... knife, computer engraving machine, engraving machine grinding machine is aimed at turning tool, bit, cutter, carving knife, computer ... , efficiency,and durability.Taiwan inverter, easy to control speed of grinding wheel, grinder running smoothly, no ... ,plastic,carton and so onTechnical specification: ModelYM1500YM3000BYM3500AMax. grinding length (mm)150030003500Width of working-table (mm) ...