JMQ-12 low speed precision cutting machine is mainly used to cut small cylinder, square metal and electronic circuit board materials. The machine adopts deadweight cutting which has a constant load and will stop automatically when the cutting is finished. It has a micrometer to adjust the thickness of the sample for precise cutting which can be used as corollary equipment for TEM. The machine has controllable rotating speed and is equipped with safe and transparent protective cover. To avoid burning the sample due to overheating, the diamond cut-off wheel will bring out the cooling water when cutting to cool the wheel and the sample. The surface of the sample after cutting is bright and flat without burns, thus it is an excellent machine for cutting small material and electronic circuit boards.