Marks workpiece with a , creating a starting point that prevents screws and drills from wandering. Delivers an automatic spring-driven strike when pressed against surface. Adjustable regulates striking force. Deeply knurled surface for nonslip control. Features - Brand: . - Color: Golden. - Material: . - Size: About 13 cm/5.1 inch(length). - 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. - : Our automatic center punch is made of a well machined brass body and has a deeply knurled surface which means that it will not and offer more precise handling and control. - Adjustable Tension: Because Industrial brass center punch has an adjustable tension will be able to get it just right can use with a simple one hand operation. No more hammering! - Emergency Use: It’s not only for wood and metal but able to glass car windows which means that you can leave one in your car and always be prepared. - Just use in the corner of a window and it will either and fall out, or easily be pushed out and escape. Package list: 2 x Center Punch