Made of the highest grade carbon steel, accurately hardened and tempered preventing splintering and extending life. Powder coated shank protects against rust. Edges accurately tempered to stay sharp. Extra-thick hexagonal shanks minimize roll away. Working ends accurately ground and hardened to HRC 52-58 for maximum service. Striking end hardened to HRC-42 maximum won’t chip or mushroom. Ideal for lining up holes in two or more pieces of metal and for drawing pins through various assemblies. Often referred to as aligning punches. Pry or twist both parts into alignment and then tap gently to ensure perfect alignment. Always use punches and chisels on materials softer than the hardness of the punch itself.