Support 32650, 26650, 18650, 18500, 17490, 14650 and other cylindrical lithium batteries, Ni- batteries, etc., all of which can be welded firmly. Support 0.1-0.3mm thick nickel strip or steel strip Concave-convex spot welding machine, stable, , convenient and durable. The digital tube shows the real-time gear position, with a of 199 power levels. encoder to adjust the gear position Through the control relay, the four concave and convex electrodes collide to realize high current discharge. The transparent protective shell is beautiful and safe to prevent the leaking components from touching the short circuit and damaging the control board. Type: spot welder Material: ABS colour: As shown Package Contents: 1 x Spot Welder Kit 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.