Digital Display Portable Welding Machine DIY Set Mini Spot Weld Soldering Kit Handheld Small Spot Welder 18650 Battery Spot Welder Machine Black Features:Made of premium aluminum alloy material, with anodic oxidation surface, abrasion resistant, fire-proof and durable in use.This welding machine support welding up to 0.2mm nickel-plated steel strip, 0.25mm slotted nickel strip.The integrated welding pen has good conductivity, low contact resistance, quick disassembly and easy wiring.The welding machine is built with ammeter function, which can indicate whether the quality of the soder joint is good or not, thus eliminating the defective solder joint.30 levels of intensity and 25 levels of delay can be adjusted, with over-discharge protection, over-voltage protection, over-current protection, short circuit protection and over-temperature protection, can guarantee safety use.Also can be used to supply power for your mobilephone.100% factory tested to ensure high performance.Specifications:Material: aluminum alloyPower: 4.2V/1.1KA (4.62KW)Battery: lithium batteryWelding capacity: 0.2mm nickel-plated steel strip, 0.25mm slotted nickel stripPackage size: 458gPackage weight: 20 * 14 * 3cmPackage List:1 * Spot Weld Soldering Kit