Features Details Reliable Precision Welding: Engineered for professional automotive repair welding, VEVOR 800W powerful stud spot welder handles up to 1.2mm single-side welding thickness, without damaging vehicle's body. Prior to welding, please thoroughly clean the sheet metal surface for enhanced welding strength. User-Friendly Operation: Choose from 5 modes - Stud Welding, Round Gasket, Long Gasket, Wave Line, Thermal Annealing. You can swiftly switch between various welding modes for accurate welding, and cooperate with the slide hammer for quick dents repair. Enjoy easy and straightforward operation. Broad Applications: With 5 types of metal studs to choose from - 2.0mm and 2.5mm studs, round and long gaskets, and wave lines - this stud welder dent repair kit caters to various needs. It effectively repairs pointed shapes, deep dents, flat areas, long straight lines, and curves, applicable for carbon steel, stainless steel, iron, and galvanized sheet metal. Enhanced Overheat Protection: Our auto body spot welding machine features a smart overheat protection system that kicks in at 203?/95?, preventing short circuits and machine burning. All-in-one Professional Kit: The VEVOR stud dent repair kit includes a complete set of accessories neatly stored within a toolbox. Its compact and lightweight design, along with a portable handle, ensure easy usage wherever it's needed.