SHGM203 | Stronghand Powerbase Grounding Magnet – 300A High clamping pressure improves arc stability and reduces power consumption. POWERBASE GROUNDING MAGNETS Power through your grounding applications! Start grounding instantly! The PowerBase Grounding Magnet sets up quickly and easily. Powerful rare earth magnet delivers heavy duty holding power. The V machined surface grips round parts. The copper connector stud allows for better conductivity Amperage: 300A @ 60% Duty Cycle Dimension: 50 x 50 x 64mm Magnetic Force: 20kg Weight: 0.5kg