Features: The Automatic Center Punching Locator is woodworking tool that allows for quick and precise positioning and punching of glass, making for professional use. With its spring loaded structure, the Automatic Center Punching Locator provide powerful force, allowing for efficient drilling on steel and wood surfaces. Automatic positioning feature ensures accurate glass striking without the risk of injury. Suitable for professional in woodworking and maintenance, the Automatic Center Punching Locator is an essential tool for break glass. It is also suitable for everyday household use, providing solution for window replacement and glass installation. Whether home or on road, the Automatic Center Punching Locator used in various setting. From routine tasks like window replacement to glass installation The Automatic Center Punching Locator is a simple and effective solution for break glass. Suitable for anyone in need of quick and efficient glass striking. Specifications: Component:Carbon Steel Size:Approx.90mm/3.54inch Package Includes: 1Pc Centre Punching note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.