Affiliate disclosure: Firebusters may receive a commission if you purchase through some links on this page, at no additional cost to you. This does not affect our assessment of the published product information. Portable resistance spot welder for overlapping sheet-metal work VEVOR DN-100E: Quick Verdict The VEVOR DN-100E is a portable resistance spot welder designed to clamp overlapping sheet metal between two copper electrodes and create a localised weld using…