The Sunkko S-71B Advanced Spot Welding Pen provides fast, accurate, and reliable welding for battery packs and nickel strips. Its ergonomic design, stable high-current output, and adjustable settings ensure clean, consistent results for both industrial and DIY projects.
Thicker red copper wire
Heat insulated
Anti slip design
24kg gold plated plug
Anti-slip strip groove design
Not held in one hand
Humanized design of hand held shell
Polymer battery in butt welding
For small metal componentLoading comparison…
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