... , bit, cutter, carving knife, computer engraving machine, engraving machine grinder machine for knife is aimed at turning tool, bit, cutter ... 4500 can be selected. grinder machine for knife Precision type:High-precision, high transmission ball screws, efficiency,and durability.Taiwan inverter, ... grinding viscosity is high .used in the industries of wood,food,print ,papermaking,plastic,carton and so ...