-adopts high-functional non-carbon-brush motor, marvelous lifespan and strong durability to make repairing and maintenance almost needless. -smaller size, high weight, low noise-pollution, fashionable design, high stability and easy operation motor which gives the benefit of longer working-time -non carbon-brush motor has more stable output of torque; itíªs best fit for operating in clean-room circumstance and no worry of pollution will be arisen. -minimum torque 0.2kgf.Cm is best applied to watch, laptop, digital camera DVD player, cell phone, communication equipment and high tech products which need to be assembled in clean-room. Carton