Model number: 32802 Pointed cold chisel Material: 65Mn steel Size: 150mm-350mm Hardness: HRC48-55 1. Material: 65Mn alloy steel, or ... Chrome Vanadium steel, or High Carbon steel. 2. Drop forged and heat treated.3. Hardness: HRC48-55.4. Shank: Hexagoanl, octagongal ... , 250x22mm, 300x22mm, 250x25mm, 300x25mm Pointed cold chisel, 65Mn, Drop forged and heat treated