Features Copper Bar Design: Thickened copper bar ensures rapid heat dissipation and resistance, providing a reliable and clean welding experience Enhanced Control with Dual Springs: The retractable dual spring mechanism allows for force control during , improving overall welding efficiency Superior Performance with Concentric Ball Pins: Equipped with concentric ball pins for optimal functionality, this tool is for extended use without compromising performance High Efficiency Welding Capability: Experience consistent results with minimal sparks and enhanced working efficiency, allowing you to tackle projects with confidence User-Friendly One-Hand : This handheld design simplifies batch spot welding, making it ideal for both profionals and DIY enthusiasts seeking convenience Features: 1、COPPER BAR: Integral welding pen adopts thickened copper bar, which can dissipate heat quickly, cleaned and protected by strong acid, beautiful and clean. 2、DUAL SPRING: The handle has double springs that can be retracted, and each welding pen is retracted independently, with moderate force control. 3、CONCENTRIC BALL PIN: Battery spot welding pen is equipped with a pair of concentric ball pins, with better use effect, suitable for long term work. 4、HIGH EFFICIENCY: Our spot welder pen will not have unstable welding, large sparks and low working efficiency, you can use it with confidence. 5、SIMPLE : Handheld integrated spot welding pen can be operated by one hand, suitable for batch spot welding production. Specification: Item Type: Spot Welding Pen Material: Red Copper, ABS Use: Suitable for industrial spot welding Work Voltage: DC4-12V Current: ≥800A Package List: 1 x Spot Welding Pen 2 x Concentric Ball Pin 2 x Spring 1 x Hex Wrench Package List 1 x Spot Welding Pen 2 x Concentric Ball Pin 2 x Spring 1 x Hex Wrench