A foil block is a specialized tool used in the metalworking industry. It typically consists of a square or rectangular block with a recessed area in the center. This recessed area is designed to hold a stamping die or punch.

Foil blocks are commonly used in conjunction with a hydraulic press to apply pressure to the die, which then shapes the metal into the desired form. They are versatile and can be used for a variety of metalworking processes, including embossing, stamping, and coining.

Foil blocks are often made from high-strength materials like steel or cast iron to withstand the immense forces involved in metalworking operations. They are an essential tool for many industries, including automotive, aerospace, and manufacturing.