18650 Battery Spot Welding Pen, DC4-12V Automatic Trigger Weld Machine DIY Spot Welder Pen, for Industrial Spot Welding Feature:
- A pair of Japanese concentric ball head pins are provided as standard, and the use effect is good.
- 18650 battery spot welding pen, suitable for long-term work, improve work efficiency.
- Made of thick brass strips, beautiful and clean appearance, the overall brass strips, heat dissipation quickly.
- 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.
- The handle is retractable with double springs, each soldering pen is independently retractable, and the strength is moderately controlled.