5-Inch Automatic Center Punch For Metal Heavy Duty Automatic Center Punch Packaging Includes:Large black and white center punch (6"), plus one large punch; small red cap center punch (5"), plus one small punch. Application:This versatile automatic center punch is suitable for a variety of tasks in wood, plastic, metal and glass. Our automatic spring locating center punching tool can be used for different applications such as wood locating, wall locating and iron plate locating, furniture installation, machine maintenance, etc. It can also be used as an alternative to automatic locating center punching tools. Design:Automatic center punch with adjustable impact strength and spring tension for light or heavy stamping, marking, punching and staking.The knurled, non-slip surface and precisely centered tip of the automatic center punch enhance control.Features a spring-loaded mechanism that allows you to change the impact force of each punch with a quick adjustment and provides additional comfort and control for punching holes in steel and wood panels, breaking windows and more! High Materials:Precision machined high carbon steel non-slip housing, the head pin is made of HSS high speed steel with hardness of HRC58-60, which can withstand high impacts, provide wear resistance, rust resistance and strength, and prolong the service life of the tool. How to Use:Align the locating point with the heavy head, hold the handle tightly and press hard towards the punch, after the punch is pressed back into the rod for a short period of time, the strong spring will vigorously eject the punch to produce a dimple for the point, simple and easy to use.No need to swing bulky or blunt objects, works in areas that traditional hammers can't reach, and lets you mark drill locations wherever you go on the job.