Positioning Tool Designed for accurate drilling on uneven surfaces, this center punches set ensures exact hole placement every time with its sharpness tip and stable base Multiple Size Option Includes 4 sizes (1 / 32 ", 2 / 32 ", 3 / 32 ", 4 / 32 ") to accommodate various project needs, making it ideal for different materials and applications Carbon Steel Construction Made from high hardness carbon steel, these punches long lasting durability and resistance to wear during repeated use Anti Slip Grip Design Features an ergonomic handle with a nonslip surfaces for secure and comfortable operations, enhancing and control Wide Materials Compatibility Suitable for drilling aluminum, iron, steel, wood, PVC, and wall, providing versatility for both DIYer and professional tasks, Manufacturer: HZBB