... cutter, carving knife, computer engraving machine, engraving machine grinder sharpener is aimed at turning tool, bit, cutter, ... inverter, easy to control speed of grinding wheel, grinder running smoothly, no impact.Germany technology and germany ... used in the industries of wood,food,print ,papermaking,plastic,carton and so onTechnical specification: ModelYM1500YM3000BYM3500AMax. grinding length ...