No electric brush, low interference, brushless motor to remove the brush, the direct change is no brush motor generated during the operation of the spark, so as to greatly reduce the interference of electric spark to remote control radio equipment. low noise, smooth operation, brushless motor without brush, friction greatly reduced in operation, smooth operation, noise will be much lower, this advantage for the operation stability of the equipment is a huge support. ong life, low maintenance cost, less brush, brush motor wear is mainly on the bearing, from the mechanical point of view, brush motor is almost a kind of maintenance-free motor, (life is at least 10 times more than brush motor) when necessary, as long as some dust maintenance. It can be used to carve metal or non-metallic materials. The spindle features high speed, low noise, low heat, can work for a long time., Manufacturer: QAXRZCUCD