General description The 5-Piece 5' Automatic Center Punch Set is designed for precision marking on various materials including wood, metal, plastic, glass, and leather. Each punch features a cushioned cap and an adjustable spring-loaded mechanism for customizable impact force, making it ideal for both professional and DIY projects. Technical specifications Material: Durable solid brass Impact cap: Red adjustable cap made of ABS plastic Length: 5 inches Usage Mark the center of the hole you want to create. Press the handle firmly to activate the spring mechanism. The punch will spring out and leave a mark on the surface. Other information Package includes 5 automatic center punches in different colors. Each punch is designed for repeatable impact and control.