The tip of this auto punch is made of high speed hardened steel for high strength and durability. Suitable for punching on the steel plate, aluminum, copper, wooden board, plastic and other materials for positioning holes. This forged industrial brass center punch gives your drill a starting point and makes it easier for you, so it won't slip in tight places. Have an image automatic hand 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 Punch is equipped with an adjustable tension screw, it is possible to adjust it perfectly so that it can be used with a simple one-handed operation. Just hammer away. Feature: Adjustable cap adjusts pushing force. Provides an automatic spring-loaded kick as you press against the surface. This industrial forge brass center punch provides your drill with a starting point and makes it easier for you, so it won't slip in tight places. An image featuring an automatic hand-punching instrument with a spring-loaded mechanism that actually works and makes a strong sign in wood, metal, steel, aluminum, brass, copper and more. Specifications: Color: Gold. Material: high speed steel. Package includes: 2 X Automatic Center Punch