Features:1. The spring structure inside the center punch can provide a strong impact force to complete the work of steel plate, plank punch, broken window and so on.2. This product can be easily drilled with anchor-points, without the need to cooperate with tools, and it is simple and easy to use.3. This product is made of high-quality steel material, which is hard and durable, incisive and easy to drill.4. This product is small and light, does not take up space.5. After-sale Service: If you have any questions, please contact us immediately and we will help you solve it as soon as possible.Specifications:Weight:Blue & Red: 40gBlack: 66gSilver: 79gGold: 80gMaterials:HSS-Material & PlasticSize:The overall length is close to 130mm, and the diameter of the head hat with a hood is about 28mm.Rangesof Application:Aluminum plate positioning; iron plate positioning;plastic positioning;wood positioning;steel plate positioning;wallpositioning.