magnetic ground grounding block magnet clamp for arc welder welding ground wire vector tools no matter where you’re welding; you can ground your weld fast with this handy magnetic welding block. a high powered magnetic base sticks to anything you weld making it perfect for pipe and pieces you can’t grab. take the hassle out of grounding with this 4” magnetic welding block!<br>threaded brass stud<br>high powered magnetic base<br>portable and easy to use