Spot Welder Spot Welder Model Compuspot 400 Guaranteed to Increase Productivity in Body Shop. Pneumatic Pressure delivered by a Light Weight G STYLE GUN. The handle pivots 360 degree for easy access to the car. Two stage trigger allows precise placement of Weld Nuggets and visual confirmation that no gaps exist before welding. No burning, No holes. 9500 Amperes of welding power for better performance on thicker sheet metal Quick change over between single side and two side gun.