Energy storage spot welder
0.15mm Pure nickel positive electrode，Good spot welding effect
0.15mm Pure nickel negative electrode
0.15mm Pure nickel positive electrode front
0.15mm Pure nickel negative electrode front
0.20mm Pure nickel positive electrode，Good spot welding effect
0.20mm Pure nickel negative electrode
0.20mm Pure nickel positive electrode front
0.20mm Pure nickel negative electrode front
0.30mm Pure nickel positive electrode front，Spot welding effect is general
0.30mm Pure nickel negative electrode front
0.20mm Pure nickel + 0.20mm Copper strip，positive electrode，Spot welding effect is general
0.20mm Pure nickel + 0.20mm Copper strip，negative electrode
Where did you get that spot welder pen at. It looks great and with the trigger switch on it.