Check the listing for details. 2 Super Strong Automatic Centre Punch Adjustable Spring Loaded Metal Drill Tool. Condition: New, Made in China. Listed at 10.97 USD. EASY TO USE: No hammer needed, with this automatic center tool, it gives your drill a start point that you can create a dimple in a workpiece quickly and easily.AVOIDS SLIP: Usually used to mark the center of a point, the small dimple guide the tip of the drill and avoids slip or deviation which result in damaging. It can offer more precise handling and control.HIGH PRECISION: The spring loaded centre punch has knurled non-slip surface and precision centered tip increase control for more accurate and precise holes, improving your work effience.WIDELY APPLICATION: The tip of this automatic center punch is made from high speed steel for high strength and durability. Suitable for punching on steel plate, aluminum, copper, wood plank and other materials to positioning holes.SAFETY: This autocenter punch is suitable for a variety of tasks, from construction to automotive. Because, it is a great tool kept in car to be used an awl for belts or glass window breaker for car safety in case there is an emergency. Product Description Description: This is an automatic center punch used to produce a dimple in a workpiece. 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 quite repeatable, allowing for uniform impressions to be made. Specifications: Tip Material High speed steel Tip Hardness HRC58°~65° Length 130mm / 5.12" Handle OD 12.7mm / 0.5" Color Black Package Includes 1 x Automatic Center Punch