It is manufactured by stamping 50# carbon steel plates with a thickness of 3.00mm, featuring one-piece forming without forged surfaces, and the surface undergoes black oxide treatment for rust resistance. The die is made of AISI 4140 alloy steel, formed by investment casting, and is available in a complete range of specifications and styles. It adopts a ratchet plate with a thickness of 3.00mm, equipped with a pressure adjustment function, ensuring labor-saving operation and long durability. The PVC non-slip handle is ergonomically designed, enabling convenient operation without scratching hands.