Feature:1. COPPER BAR: Integral welding pen adopts thickened copper bar, which can dissipate heat quickly, cleaned and protected by strong acid, beautiful and clean.2. DUAL SPRING: The handle has double springs that can be retracted, and each welding pen is retracted independently, with moderate force control.3. CONCENTRIC BALL PIN: Battery spot welding pen is equipped with a pair of concentric ball pins, with better use effect, suitable for long term work.4. HIGH EFFICIENCY: Our spot welder pen will not have unstable welding, large sparks and low working efficiency, you can use it with confidence.5. SIMPLE OPERATION: Handheld integrated spot welding pen can be operated by one hand, suitable for batch spot welding production.Specification:Item Type: Spot Welding PenMaterial: Red Copper, ABSUse: Suitable for industrial spot weldingWork Voltage: DC4-12VCurrent: 800A.Package List:1 x Spot Welding Pen2 x Concentric Ball Pin2 x Spring1 x Hex Wrench