Item Type: Battery Spot Welding PenMaterial: BrassWorking Voltage: DC4-12VWorking Scenarios: Battery spot welding for home and industrial usePackage List1 x Battery Spot Welding Pen2 x Touch Device2 x Spring1 x Hex WrenchThis product is an integrated spot welding pen, need to be connected to the spot welder to use, only the welding pen of the spot welder, and can not be used alone.1High Efficiency: Battery spot welding pen adopts thick copper strip, which is conducive to improve the efficiency and suitable for long time use. 2Integrated Design: Automatic trigger spot welding pen adopts integrated design, which is beautiful and neat and has good heat dissipation effect. 3Retractable Design: Handheld spot welding pen has double springs inside the handle, each pen can be retracted independently. 4Easy to Operate: The automatic trigger spot welding pen has a built in limit switch for one handed operation without a foot pedal. 5Comfortable and Effortless: Battery spot welding pen feels comfortable in the hand, withstands long hours of use, is stable and reliable, and is wear resistant and effortless.