1、Made of alloy steel and high-speed steel, it has high hardness and the hardness of the tip is HRC58-65°. 2、For high hardness, very thick items, you can make a small hole first, and then it is not easy to shift when using the electric drill. 3、The surface of the product is anti-slip, and it is not easy to slip when it is punched. 4、The operation is very simple and can be done with one hand. 5、Suitable for punching work on a variety of materials, such as iron, aluminum, wood, plastic, etc. Feature: Made of alloy steel and high-speed steel, it has high hardness and the hardness of the tip is HRC58-65°. Built-in spring, using the force of the spring can achieve automatic punch hole. For high hardness, very thick items, you can make a small hole first, and then it is not easy to shift when using the electric drill. The surface of the product is anti-slip, and it is not easy to slip when it is punched. The operation is very simple and can be done with one hand. Suitable for punching work on a variety of materials, such as iron, aluminum, wood, plastic, etc. Specification: Material: Alloy steel+HSS Tip hardness: HRC58-65° Color: Black; Gold(Optional) Length: 130mm / 5.1in Package list: 1 * Center punch Note: The actual product color may deviate from the photo due to light. There may be a slight deviation in the measurement of product.