DIY Integrated Spot Welding Pen Spot-welding Machine Handle Automatic Trigger For FPV Racing RC Drone Spare Parts ,Heat Dissipation Efficiently

- A practical one-piece automatic trigger handle - Automatic trigger without pedal - The handle width is only 34mm thick and 22mm thick, 100mmlong feels particularly good, especially suitable for small hands - A single clip 200 square, the main copper bar 45 squaremeters.(The main copper bars and clips are all made of copper. ) - Using 3MM solder pins, the shell is 3D printed, the connection line is about 80cm.