[ezrae Libun] 1Set Battery Spot Welding Pen Handheld Copper Belt 3mm Core DIY Point Touch Pen Thread Fixed For Battery Spot Welding Accessories Tools

DIY spot welding pen installation reference. Spot welding needle is manually processed, the length will be about 8mm error, the core diameter is about 2.3-2.4mm error, please pay attention to the purchase of friends about the size of the problem Thank you. Copper tube inner diameter 8mm maximum cable gauge: 4awg about 7.5MM). Wiring requires a little skill, when you need to connect just 7.5mm cable need to smooth out the line and then twist into a stream slowly into the copper tube can be reserved for 10-15mm). Spot welding copper core can be installed a 100mm complete refill cut into 2 sections to use, the tip is threaded tightening fixed type. The spot welding pen can fit a 100-length welding needle. In addition, it is strongly recommended to use hydraulic pliers for tightening. Only in this way can the cable and the pen body be in full and firm contact, so as to avoid weak contact and affect the welding effect. Hydraulic fixing is not comparable to screw fixing. The spot welding pen