Features: 1. Digital thrust anti-stick design, can arc instantly, will not stick to the electrode. 2. Suitable for the 2.5, 3.2mm electrode, it can works continuously, with high efficiency. 3. With the current and thrust adjustment knob, you can adjustable the current and thrust through this knob. 4. With high efficiency cooling system, can ensure long time of work, prolong the service lifes of the machine. 5. This machine is small in size and easy to carry, you can take it to work aloft or to anywhere you want to use it.