Model number: 32801 Flat cold chisel Material: 65Mn steel Size: 150mm-350mm Hardness: HRC48-55 1. ... heat treated.3. Hardness: HRC48-55.4. Shank: Hexagoanl, octagongal, round available.5. Surface: orange color painted. 6. Size: 150x14mm, 200x14mm ... , 400x18mm, 250x19mm, 300x19mm, 350x19mm, 250x22mm, 300x22mm, 250x25mm, 300x25mm Flat cold chisel, 65Mn steel, heat treated