Integrated Type Welding Pen Automatic Trigger Welding Machine Accessory For 18650 Battery, YellowThis is a kind of fine quality spot welding pen, adopt thick copper bar, help improve work efficiency, and suitable for long service time. The integrated design, beautiful and neat, with fine heat radiation effect. There are dual sources on the handle, each welding pen can be extended independently. Built-in limit switch, one-handed operation, do not need foot pedal. You can try. Features: Adopt thick copper bar, help improve work efficiency, and suitable for long service time. The integrated design, beautiful and neat, with fine heat radiation effect. There are dual sources on the handle, each welding pen can be extended independently. Built-in limit switch, one-handed operation, no need for foot pedal. With comfortable hand feeling, can support long-time use, stable and reliable, wear-resistant, saving and effort. Suitable for 18650 battery spot welding machine. Note: Please connect to 12V external power source. Specifications: Name: Spot Welding Pen Color: White, Blue, Green, Black, Yellow, Red (Optional) Welding Needle Size: 50 * 3 * 3mm / 1.97 * 0.12 * 0.12in Item Size: 155 * 45 * 25mm / 6.10 * 1.77 * 0.98in Item Weight: 250g / 8.82oz Package Size: 200 * 100 * 50mm / 7.87 * 3.94 * 1.97in Package Weight: 300g / 10.58oz Packing List: 1 * Spot Welding Pen