DescriptionMarks workpiece with a dimple, creating a starting point that prevents screws and drills from wandering. Delivers an automatic spring-driven strike when pressed against surface. Deeply knurled surface for nonslip control.Features-Color: As shown. - Material: Chrome-vanadium alloy steel and plastic. - Size: About 13.1x1.3x1.3cm. - Easier To Drill: Picture having an automatic hand punch tool with a spring loaded mechanism that actually works and makes a solid mark in wood, metal, steel, aluminum, brass, copper and more. - Made of a well machined chrome-vanadium alloy steel body and plastic handle for durable use. - Has a deeply knurled surface which means that it will not and offer more precise handling and control. - Emergency Use: It's not only for wood and metal but able to shatter glass car windows which means that you can leave one in your car and always be prepared. - Light weight anbd portable, easy to carry and storage.