Welding Machine Hitch Strong Magnetic Grounding Machine Sheet Metal Repair Features: Set the grounding clamp to complete the welding operation anywhere in a few seconds. Equipment to speed up grounding work. With copper tail with good welding stability. With strong magnetism, large suction. Single absorbable weight 3KG. Specification: Type: welding head(without wire tail/with wire tail) Material: copper / iron / insulation board Disk diameter: 36 mm Size:As picture show Applicable Scope: mechanical repair/magnetic ground for welding