The tip of this automatic punch is made of high-speed hardened steel for high strength and durability. Suitable for punching on steel plate, aluminum, copper, wooden board, plastic and other materials for hole positioning. This industrial forge brass center pin gives your drill a starting point and makes it easier on you, so it doesn't slip in tight places. Have an automatic hand picture punch tool with a spring mechanism that actually works and makes a solid mark in wood, metal, steel, aluminum, brass, copper and more. Since the industrial forge brass center pin is equipped with an adjustable tension screw, it is possible to use it perfectly with a simple one-handed operation. Just hammer. Feature: Adjustable cap adjusts pushing force. Provides an automatic spring-loaded blow when pressed against the surface. This industrial forge brass center punch provides your drill with a starting point and makes it easier for you, so that it doesn't slip in tight places. A picture featuring an automatic hand punching instrument with a spring mechanism that actually works and makes a solid sign out of wood, metal, steel, aluminum, brass, copper and more. Specifications: Color: golden. Material: high speed steel. Package Includes: 2 X Automatic Center Punch