The Vevor hydraulic knockout punch kit is designed for punching clean, accurate conduit holes in metal and other materials. This 4-piece set includes die sizes for 1/2", 3/4", 1", and 1-1/4" conduit applications and is built from durable 40Cr steel for long-lasting performance. Laser-engraved alignment marks help improve positioning and precision during use. The slug-splitting die design helps make slug removal easier and supports cleaner round holes. It is suitable for use on stainless steel, iron, aluminum, plastic, and glass fiber.