Features: Can be used for plastic, wood, and metal marking. Made of alloy steel, sturdy and durable. Hardened and tempered steel provides wear resistance and strength. Round shank is knurled for grip. Set includes 1.5mm, 2mm, and 3mm center punches. [1] This center punch is used to mark the center point and is typically used to mark the center of a hole before drilling. [2] The punch can be used to drive an object or to form an impression on the workpiece. [3] The center punch features a spring-type adjustable stroke, suitable for various materials such as wood, plastic, metal, glass, and leather. [4] Active spring drive action and a hard steel tapered tip make punching easier. [5] Automatic spring loading is released at the top of the cycle under force to create a center punch; no hammer required. NOTE: The color of the model number printed on the product may vary by batch; this does not affect performance. Material: Alloy steel Color: Black Package Contents: 3 x Center Punch (1 piece each of 1.5mm, 2mm, 3mm) Note: Light reflection and differences in display screens may cause slight variations in the color shown in the image compared to the actual product. Measurement may vary by +/- 1-3cm.