Features: The spring structure inside the center punch can provide a strong impact force to complete the work of punching steel plates, wood plates, broken , etc. non-slip shell manufactured by finishing is . After pressing hard, the impact is triggered accurately, and with the impact tip, it is easy to locate and break the glass on the high-hardness metal. describe: Name: Automatic Center Punching Locator Usage: Align the positioning point with a heavy head, firmly hold the handle and it towards the direction of the punch. After the punch is pressed back into the rod for a short period, a strong spring vigorously eject the punch, creating a pit for the dots, without the need to cooperate with tools such as a hammer, which is simple and easy to use. size: 128mm Material: steel colour: silver+black Package Contents: 2 x Automatic center punch positioner 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.