Product Description Features: Adjustable Welding Pins This handheld mobile spot welder pen offers customized welding configurations with adjustable welding pin distance from 2mm to 7mm, ensuring precise and high-quality welding results. High-Efficiency Design The 70BN welding pens feature a user-friendly design providing easy and comfortable operation, ideal for welding and assembling battery packs. Enhanced Cable Connection With an upgraded 324K gold plated anti-slip plug, this tool ensures quick and easy connection while preventing oxidation, enhancing durability. Excellent Heat Dissipation Equipped with two heat release holes, the welding pen facilitates effective heat dissipation, ensuring optimal functionality and extended lifespan. Versatile Usage Capable of welding 0.25mm thick pure nickel, these handheld mobile spot welding pens are highly versatile for creating various battery packs. Specifications: Brand: SUNKKO Model: S-70BN Welding Pen Cable Length: 580mm Cable Cross-Section: 16mm2 Welding Pin Size: 1.5mm x 7mm Adjustable Welding Pulse Current: 0 - 500A Adjustable Distance of Welding Pins: 2 - 7mm Optional Interface Shape: O Shape / U Shape Package Included: Type A: U Shape 1 x Welding Pen 2 x Welding Needles 1 x Hexagon Wrench 2 x M3*5 Screw Type B: O Shape 1 x Welding Pen 2 x Welding Needles