This automatic center punch is a hand tool used to produce a dimple in a workpiece (for example, a piece of metal). It performs the same function as an ordinary center punch but without the need for a hammer. When pressed against the workpiece, it stores energy in a spring, eventually releasing it as an impulse that drives the punch, producing the dimple. The impulse provided to the point of the punch is repeatable, allowing for uniform impressions to be made. Great for making starter marks for drilling holes, whether one or many in precise measurements.

* Made with a brass body and a hardened carbon steel point

* High tension spring built-in inside, and a textured shaft - it does the work for you

* Ideal for making marks of uniform size and shape to mark the point for drilling holes

* Only 5 inches long, and weighs only 1.6 ounces in total

* You can mark metal, wood, fiberglass, plastic and more with this handy tool