Welding ground clamps attach to the workpiece to allow current to create the arc required for welding. Sometimes called earth clamps, they also reduce the risk of shock.
Spring-Loaded Ground Clamps
Spring-loaded ground clamps have a spring at the end of the handle to create a stronger connection to the workpiece than standard ground clamps. The quick action handle provides fast clamping to flat and round surfaces.
Spring-Loaded Ground Clamps, sorted by Current (Maximum), ascending