Feature: 1. 20PCS IN 1 SET: Including 20pcs center punch replacement bits with standard size can directly replace old or damaged center punch bits. 2. EASY OPERATION: These center punch bits can be used with circlips plug and play which can ensure good stability and in drilling operation. 3. ALLOY STEEL: These center punch heads are made of alloy steel material which has high hardness and wear resistance and is not easy to deform. 4. STANDARD SIZES: The center punch bit has standard diameter and length which can be directly installed on suitable center punch stable and reliable. 5. MAIN FUNCTION: Use the punch tip to make dots on the workpiece as marks for the center of the circle or other points and lines convenient for drilling. Specification: Item Type: Center Punch Bit Material: Alloy Steel Package List: 20 x Center Punch Bit Note: Pay attention to protection when using it.