Item Details Sumner Manufacturing Company 400 A Rotary Ground Clamp offers fast, positive ground for roll-out welding of pipe and fittings that eliminates weld pinholes caused by poor grounding. It has rotary head turns with the pipe-puts an end to ground lead twist, tangle and wear. Clamp is perfect for attaches and detaches in seconds. It makes up ground leads three ways-lug, clamp-on and bare cable. Features Rotary head turns with the pipe-puts an end to ground lead twist, tangle and wear Provides...