Feature:1. The spot welding tool is hand-held, and the ergonomic design is not tiring for spot welding.2. With trigger switch, the integrated spot welding pen can be triggered instantly, and the operation is simple and stable.3. Support high current and high power work, load current 1500A, spot welding is more precise and efficient.4. There are radiating holes all around, so long-term work does not generate heat without interruption.5. The copper wire of the spot welding pen is long enough to be installed on the spot welding machine and is not restricted by space movement.Specification:Item Type: Hand Welding PenProduct Model: S-73BMaterial: Plastic + CopperPurpose: Install on spot welding machineMaximum Welding Thickness: Approx. 0.25mm / 0.01inAdjustable Solder Pin Spacing: Approx. 3-7mm / 0.1-0.3inSoldering Pin Size: Approx. 35 x 3mm / 1.4 x 0.1inLoad Voltage: 4-6VLoad Current: 1500AHandle Size: Approx. 50 x 33 x 180mm / 2 x 1.3 x 7.1inCopper Wire Length: Approx. 540mm / 21.3in (including interface length).Package List:1 x Welding Pen (16 Square Copper Wire + UShaped Plug)1 x Needle Pitch Hex Wrench1 x Copper Wire Hex Wrench1 x Pressure Adjustment Wrench 1 x Slot Screwdriver2 x Spot Welding Pin2 x Screw1 x English User Manual Note:1. After the welding is completed, since the weld metal has not completely solidified, do not rush to touch the workpiece, nor rush to clean the welding slag on the welding pen and the workpiece to avoid scalding.2. For novice users, please refer to the manual for operation.