This product is a spot welding pen that must be connected to a compatible spot welding machine. It is not a standalone device and cannot operate independently. Each welding pen features independent extension with moderate force control. Unlike standard integrated pens, this design uses dual springs for independent extension and retraction of the welding tips, ensuring consistent pressure, secure welds, and improved efficiency—ideal for batch spot welding production. Equipped with a built-in travel switch, it enables one-handed operation without requiring a foot pedal, enhancing workflow efficiency. The ergonomic pen-style grip allows comfortable, prolonged use—reducing hand fatigue during extended operation. Efficient Welding Tool: Designed for precision battery welding, especially with 18650 cells. Features a built-in switch and automatic trigger for enhanced control and ease of use. User-Friendly Design: Compact and lightweight for easy handling and portability—suitable for both professional and DIY applications. Durable Construction: Built with high-quality copper components for reliable performance and long-term durability. Note: Slight variations in appearance or labeling may occur between production batches; these do not affect functionality. Color: Blue Material: Copper Package Contents: 1 x Spot Welding Pen Kit (Other accessories shown are not included.) Note: Color representation may vary slightly due to screen settings and lighting conditions. Measurements allow for minor tolerance.