Made of ductile cast iron, these clamps are sturdy and rust resistant, making them perfect for securing materials of various thicknesses The unparalleled clamping power of our G-type woodworking clamps is designed to ensure stability in any woodworking project These clamps are an essential tool for any workshop and provide high durability for demanding jobs For professional woodworkers, hobbyists and artists who need a high strength clamp solution Perfect for furniture making, processing, and model assembly where a firm hold is required, Manufacturer: Tertioi