Features Superior Performance with Japanese Pins - Comes standard with high-quality concentric ball head pins for optimal results in your DIY projects Long-lasting Power Efficiency - Designed for use with 18650 batteries, ensuring extended work time and improved productivity for all your welding tasks and Ele Construction - Made from thick brass strips for a clean appearance and quick heat dissipation, enhancing the longevity and reliability of the tool Ideal for Battery Pack Assembly - for assembling battery packs, with all brass components treated for maximum brightn and protection against Adjustable Handle for Comfort - Features a retractable handle with double springs, allowing for independent control of each pen and ensuring user-friendly Features: 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 are cleaned and protected by strong acid to ensure the brightn of the brass . 5、The handle is retractable with double springs, each soldering pen is independently retractable, and the strength is moderately controlled. Specification: Item Type: Spot Welding Pen Material: ABS, brass Uses: Suitable for industrial spot welding Working Voltage: DC4-12V Current: ≥800A Package List: 1 x Spot Welding Pen 2 x Concentric Ball Pin 2 x Spring 1 x Hex Wrench Note: This does not require a power supply, just connect the positive and negative poles of the output end of the spot welding pen to this welding pen and you can use it.betweendiv>betweendiv>Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.betweenbetweenbetweendiv>This product is only a spot welding pen, without spot welding machine.betweenbr>between Package List 1 x Spot Welding Pen 2 x Concentric Ball Pin 2 x Spring 1 x Hex Wrench