This handheld spot welding machine requires no additional spot welding pens, is easy to carry and can be used anywhere. The built-in power supply and soldering iron pen are combined in one unit for easy soldering without the need for an external soldering pen. Wide range of applications - suitable for welding 18650/26650/36650 and other cylindrical lithium batteries, mobile phone batteries, nickel-metal hydride batteries, and nickel-cadmium batteries. It can also be used to weld iron, steel, stainless steel plates with thickness less than 0.15 mm/0.007 inches to other iron, steel, stainless steel materials. 11 Adjustable Gears - This mini spot welder device has 11 adjustable output power, which can be adjusted according to the different materials you spot weld. 1-3 gears are for mobile phone batteries, 3-6 gears are for 0.1mm nickel plates, 6-11 gears are for 0.12-0.15 nickel plates. It can spot weld more than 200 times on a single charge. Easy to operate - The spot welder contains only two buttons for easy one-handed operation. Press and hold the side power on/off button with your middle finger for 2 seconds, press and hold the adjustment button once with your index finger, and then hold for 2 seconds to adjust automatic or manual mode. Safe to use - The spot welder has high-quality polymer batteries, overcharge protection, temperature protection, short circuit protection, abnormal battery temperature alarm and breakpoint welding functions, and low cell voltage alarm. Ultra-low power consumption, longer standby time. What you will get - 1 handheld spot welder, 2 meters of nickel plated plate, 1 piece of abrasive paper, 1 Type-C charging cable, this is a great gift for your relatives and friends who like battery DIY Gift. Colour:Black Material:Metal Package Contents: 1 set x mini welder Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.