【Use of automatic punch】 - Suitable for punching steel plates, aluminum, copper, wooden planks and other materials for positioning holes. It's also a great tool to keep in the car for breaking windows in an emergency. 【Small Indentation】 - This small indentation is usually used to mark the center of a point and guides the tip of the drill bit. This avoids slipping or deviation that lead to damage. 【Material】 - The tip of this automatic centering punch is made of high speed steel for high strength and durability. 【Easy To Use】 - No hammer required, this automatic centering tool is a quick and easy way to make a recess in a workpiece 【Quality Assurance】 - The quality of our products is guaranteed and can be used without hesitation. If you have any questions during use, please feel free to contact us., Weight: 0.1322773572 pounds, Manufacturer: Vikye