5/9" Heavy Duty Cold Chisel 7" Long Alloy Steel Octagonal Flat Cold Chisel

1. Made from alloy steel (60Si2Mn), our chisel set is heat-treated and drop-forged for durability and toughness. This high-grade alloy steel ensures robust performance and resistance to corrosion. The baked enamel finish provides a protective layer that guards against rust, corrosion, and wear, ensuring long-lasting reliability for professionals and DIY enthusiasts.2. With an edge hardness of 55-58 HRC, our chisels are optimized for superior cutting abilities on hard materials such as wood, stone, and metal. The hardened blade enhances toughness and durability for demanding tasks, while the one-piece cold-forging technology provides strong load-bearing capacity and stable power transmission, making it easier to penetrate hard stone.3. Cold chisels are suitable for cutting rivets, rods, and bolts; removing slag and waste; and forming steel, brass, bronze, cast iron, and aluminum. Suitable for tasks involving iron, stone, and screws.4. Note: When using the cold chisel to strike stone, clean floor cement, or groove, apply appropriate force to avoid damaging the chisel. Regularly sharpen the chisel to extend its lifespan.