... Model number: 32800 Flat cold chisel Material: 65Mn steel Size: 150mm-350mm Hardness: HRC48-55 1. Material: 65Mn alloy steel, or Chrome ... Hardness: HRC48-55.4. Shank: Hexagoanl, octagongal, round available.5. Surface: orange color painted. 6. Size: 150x14mm, 200x14mm, 200x16mm, 250x16mm, ... , 300x19mm, 350x19mm, 250x22mm, 300x22mm, 250x25mm, 300x25mm Flat cold chisel, material 65Mn, heat treated