Versatile Center Punch Set: Includes a 5Inch automatic center punch, a 6Inch automatic center punch, and a 5Inch automatic center punch with a ball cap, Each unit comes equipped with a replacement pin, making it an essential center punch set for various tasks including marking on metal, wood, stone and plastics. Durable Construction: Each automatic center punch for metal features a head made from high-speed steel (HSS) with an impressive hardness of HRC58-60, ensuring that this metal punch tool is built to last. The electroplated finish enhances durability and wear resistance, making it a reliable choice for any job. Ergonomic Design for Comfort: The spring loaded center punch is designed with a knurled texture for a secure grip and ergonomic ball cap that protects your palm during use. This thoughtful design reduces hand fatigue, allowing you to work comfortably with this spring punch tool for extended periods. Precise and Efficient Marking: With its strong impact force provided by the internal spring, the center hole punch creates accurate indentations at your target points. This feature prevents drill bits from slipping, ensuring precise placement on various surfaces, from metal and wood to plastics. Multi-Purpose Tool: Ideal for both professional and DIY enthusiasts, this spring center punch can be used as a metal punch, furniture installation tool, or even an emergency window breaker for vehicles. The center punch tool is perfect for machine maintenance, positioning materials like steel and aluminum, making it a versatile addition to your toolkit. Colour:As Shown Material:steel Package Contents: 1 set * hole punch tools Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.