No brush, low interference, brushless motor removes the brush. The most direct change is that there is no spark generated when the brush motor is running, which greatly reduces the interference of the spark to the remote control radio equipment. The noise is low and the operation is smooth. The brushless motor has no brush. The friction is greatly reduced during operation. The operation is smooth and the noise is much lower. This advantage is a great support for the stability of the equipment. long life, low maintenance costs, less brush, brushless motor wear is mainly on the bearing, from a mechanical point of view, brushless motor is almost a maintenance-free motor, (life is brushed motor 10 times or more) When necessary, just do some dust removal maintenance. Can be used to engrave materials such as metal or non-metal.This spindle features high speed, low noise, low heat and long working hours., Manufacturer: QAXRZCUCD