Small Welding Traces: Compared with other products, our spot puller's single-sided welding thickness is 0.6mm - 1.2mm, so the welding spots are small, while the strength is relatively high, and the back metal coating or paint surface will not be damaged. Versatile Application: Contains 7 different types of studs, suitable for various dent sizes and types. One high performance gun comes with both manual and automatic welding functions, easily handling larger dents on flat or curved automotive body panels Efficient Cooling System: The overheating protection and holes on the side can quickly perform efficient heat dissipation, making the spotter dent puller not so easy to burn, providing high efficiency and ensuring rapid heat dissipation. DIY Friendly: Equipped with 7 default welding modes to adapt to different welding studs, easy to operate control panel. Ideal for car enthusiasts and DIYers looking to tackle dent repairs at home or in their workshops with ease and confidence