DurableThe panel welding pliers are made of chrome vanadium steel, sturdy and durable, wear-resistant and heat-resistant, not easy to rust, have a long service life. Good PerformanceThese sheet metal welding clamps can completely clamp the edge of the panel to the edge with very small gaps, allowing full weld penetration. It is an ideal choice for professionals working on sheet metal body repairs. Easy to Use Loosen the locating screw wing nut, then wedge the two panels between the body square and block clamp; tighten the wing nut to fix it firmly, simply remove the clamps after initial welding. Application The welding positioner allows flat alignment of the top or bottom surface of the panels, can be used for straight or curved plates, fenders, automotive sheet metal, door skins, precast panels, etc. Specifications Material: Chrome Vanadium Steel Color: Silver Item Size: 50 * 25mm / 2.0 * 1.0in Packing List:8 * Butterfly Welding Positioner ",