Feature:1. A pair of Japanese concentric ball head needles are provided as standard, and the use effect is good.2. 18650 battery spot welding pen, suitable for long‑term work and improve work efficiency3. Made of thick brass strips, it looks beautiful and tidy, and it dissipates quickly, making it very suitable for assembling battery packs4. All brass bars are cleaned with strong acid and protected with a protective layer to ensure the brightness of the brass bars and easy operation5. The handle is retractable with double springs, each welding pen is independently retractable, and the strength is moderately controlled.Specification:Item Type: Spot Welder PenMaterial: ABS, brassUses: Suitable for industrial spot weldingWorking Voltage: DC4-12VCurrent: ≥800A Package List:1 x Spot Welding Pen2 x Concentric Ball Needle2 x Spring1 x Hex Wrench