General description Brand new and high quality high-carbon steel center punch set designed for precise marking on various materials including alloy steel, metal, and wood. This set is ideal for drilling applications, helping to prevent drill slippage and damage. Technical specifications Material: High-grade steel Color: Black Length: approx. 10 cm Sizes: 1.5 mm, 2 mm, 3 mm (0.059 inch, 0.078 inch, 0.11 inch) Quantity: 12 pcs Usage Used as a marker for drilling, such as for center lines or circumferential lines. Facilitates processing by providing accurate positioning for drilling holes in steel, aluminum, copper, and other materials. Other information Note: Light reflection and different displays may cause the color of the item to differ slightly from the actual product. The measurement allowed error is +/- 1-3 cm.