【Strong Magnetic Holding Capacity】This heavy-duty magnetic base features 300kgf vertical holding force and 90kg horizontal shear pulling strength. It firmly grips uneven steel plates and various iron workpieces, offering stable clamping for welding, drilling and machining to ensure safe, efficient operation 【Easy Manual On/Off Control】Equipped with a handy hand switch, this magnetic fixture requires no external power supply. You can quickly turn on the magnetic force to lock workpieces in place or switch it off for full demagnetization, enabling flexible repositioning and time-saving operation in daily industrial work 【Premium Durable Solid Structure】Made of high-performance permanent magnets and sturdy aluminum alloy, this magnetic holder boasts great wear resistance and stable magnetic force. It reliably fixes workpieces for welding, cutting, grinding and pipe installation, being a durable tool for professional use 【Wide Compatibility for Multiple Metal Surfaces】The precision flat magnetic surface firmly adheres to all ferrous materials, including flat steel plates, round pipes, solid bars and irregular metal workpieces. Perfect for workshops, construction, auto repair and various industrial applications 【Lightweight Portable Compact Design】Measuring 195×42×43mm and weighing just 2.1kg, this magnetic clamp is easy to transport between work sites. It occupies minimal space in your toolbox, ideal for outdoor and mobile working needs