18650 Battery Hanheld Spot Welding Pen (4~12V)

18650 Battery Spot Welding Pen, DC4-12V Automatic Trigger Weld Machine DIY Spot Welder Pen, for Industrial Spot Welding Feature: 1. A pair of Japanese concentric ball head pins are provided as standard, and the use effect is good. 2. 18650 battery spot welding pen, suitable for long-term work, improve work efficiency. 3. Made of thick brass strips, beautiful and clean appearance, the overall brass strips, heat dissipation quickly. 4. Very suitable for use in assembling battery packs, all brass bars are cleaned and protected by strong acid to ensure the brightness of the brass bars. 5. The handle is retractable with double springs, each soldering pen is independently retractable, and the strength is moderately controlled.